37+ Best Fish For A 55 Gallon Tank

If you are someone who prefers varieties in their tank! Then, a 55-gallon tank might be perfect for you. This site gives you plenty of room to add a few different kinds of fish. But, with all that space, you surely want to know the best fish that you can keep in your 55-gallon tank. So, what fish should you put in it?

Some of the fish that I think suit best in a 55-gallon tank is:

Swordtail

Neon Tetra

Cichlids

Guppies

Platy

Rainbowfish

Angelfish

These are some of my personal favorites and are easily available in any pet store. In addition, other good fish options for a 55-gallon tank are Neon tetra, Plectostomus, Gourami, Green Spotted Puffer, Kuli Loach, and Celestial Pearl Danio.

These are only a few, as you read further, you will know much more fish that can fit in your 55-gallon tank. Not only does this article includes complete information about these fish, but I can also assure you that you will know more about your 55-gallon tank through it. So, let’s get started!

Why Should You Choose A 55 Gallon Tank?

Before digging in deeper about the best fish for a 55-gallon tank, let me first tell you why you should prefer a 55-gallon tank. Even though you trust my words, you don’t need some solid proof before making such a huge decision in your life.

So, here are some benefits of owning a 55-gallon fish tank.

A 55-gallon fish tank is just the right size. Not too big and not too small, making it perfect for both beginner and experienced fishkeepers alike.

This tank can accommodate a wide variety of fish. So, you can mix and match different species to create your own little underwater ecosystem.

A 55-gallon tank is also relatively easy to maintain. You won’t have to spend hours every week cleaning and changing the water like you would with a larger tank. With regular cleaning and proper filtration, your tank will stay healthy and happy for years to come.

Also, this tank can be placed almost anywhere in your home. Whether you want to put it in your living room or bedroom, a 55-gallon tank will fit right in.

They’re also more affordable than their larger counterparts, making them a great option if you’re on a budget.

Now, I am pretty sure you won’t have a doubt about why you should go for a 55-gallon tank. Thus, let’s move forward and look at the best fish options that you can get for your 55-gallon tank.

37+ Best Fish For A 55 Gallon Tank

When you have a bigger tank, like a 55-gallon tank, you will undoubtedly have lots of options in your hand. You can keep schools of small fish or a few medium-sized fish, or either just go for a single big fish. It’s all up to you.

However, if you ask me! I like colors and varieties in my tank so I would suggest you keep different types of semi-aggressive fish. Nevertheless, it’s only what I prefer. Here are your options for a 55-gallon tank. Read it, take your tank and choose the one that suits you the best.

African Cichlids

African cichlids are a type of fish that originates from the freshwater lakes of Africa. They come in a wide range of colors and patterns, and they typically range in size from 2 to 6 inches. African cichlids are known for being hardy and adaptable, and they can tolerate a wide range of water parameters. They are also relatively easy to care for, making them a good choice for beginner aquarium hobbyists.

African cichlids are typically peaceful fish, but they can be territorial when kept in smaller tanks. For this reason, it’s important to provide them with plenty of hiding spots and to avoid keeping them with other aggressive fish species. So, a 55-gallon tank is ideal for keeping a few African cichlids.

However, there are also some drawbacks to consider if you are thinking of keeping this fish. African cichlids can be very sensitive to changes in water quality, and they are also susceptible to disease. You should thus be very attentive to their ideal water conditions (temperature between 78 and 82 degrees Fahrenheit, general hardness ranging from 160 – 320 ppm (parts per million) or 9° – 18° DH, and pH between 8.0 and 8.2).

Molly Fish

Molly fish are a type of Freshwater fish that originates from Central America. They are a popular choice for aquariums because they are relatively small (reaching a maximum size of about four inches) and adapt well to a wide range of water parameters. Molly fish are also known for being peaceful and easy to care for, making them ideal tank mates for a variety of different species.

When it comes to choosing fish for a 55-gallon tank, Molly fish is a great option. Thanks to their small size, you can keep several of them in a single tank without overstocking. Molly fish do have some disadvantages, however. They can be sensitive to changes in water parameters, and they are not always the longest-lived fish.

But overall, they make an excellent choice for beginning aquarists or anyone looking for a low-maintenance pet fish.

Green Spotted Puffer

The Green Spotted Puffer is a freshwater fish that originates from rivers in Southeast Asia. This fish is a popular choice for aquariums because of its vibrant coloration and playful personality.

Green Spotted puffers typically grow to be about four inches in length, although they can reach up to six inches in the wild. These fish are relatively easy to care for, but they do require weekly water changes and stable water parameters.

Green Spotted Puffers are also known to be aggressive, so it is best to keep only one fish per tank. In a 55-gallon tank, you could keep two or three of these fish, provided that you do regular water changes and maintain stable water parameters.

Overall, the Green Spotted Puffer is a great choice for a freshwater aquarium. They are relatively easy to care for and make a beautiful addition to any tank. However, their aggressive nature should be taken into consideration before adding them to your home aquarium.

Swordtail

Swordtails are freshwater fish that originates from Central America. They get their name from their long, sword-like tailfin. Swordtails are relatively small fish, and they can grow to be between 4 and 6 inches long.

As far as water parameters go, swordtails prefer water that is on the softer side with a neutral pH. They are also fairly peaceful fish, which makes them a good choice for community tanks. When it comes to tank size, swordtails do best in tanks that are at least 55 gallons. Some of the advantages of keeping swordtails include their low maintenance requirements and their hardiness.

However, one of the main drawbacks of swordtails is that they can be fin nippers. So, if you decide to keep swordtails, it is important to make sure that you provide them with plenty of hiding places and that you don’t keep them with any fish that have particularly long fins.

Bleeding Heart Tetra

The Bleeding Heart Tetra originates from the warm waters of South America. It is a small fish, only reaching about 2 inches in length. These fish are very peaceful and make great additions to community tanks. They prefer water that is on the acidic side with a temperature range of 72-82 degrees Fahrenheit.

When kept in ideal conditions, Bleeding Heart Tetras are very hardy fish. They are also very active swimmers and make good tank mates for other similar-sized fish. Because of their small size, you can keep a large school of them in a single tank. They are also relatively easy to care for, making them a good choice for beginner aquarists.

However, there are a few things to keep in mind when keeping Bleeding Heart Tetras. They need to be kept in groups of at least 6 fish. This will help to reduce stress levels and make them feel more comfortable in their environment. Also, Bleeding Heart Tetras are very sensitive to changes in water quality, so it is important to regularly test the water parameters and perform regular water changes.

Black-Shirt Tetra

The Black-Shirt Tetra originates from the Orinoco Basin in South America. It gets its name from the characteristic black stripe that runs down its body.

Black-Shirt Tetras are a relatively small fish, only growing to be about 2 inches in length. They prefer slightly acidic water with a temperature range of 72-82 degrees Fahrenheit. In terms of temperament, these fish are generally peaceful and can be kept with other similarly sized fish.

When it comes to tank size, a minimum of 20 gallons is recommended, but 55 gallons is ideal. Some of the advantages of keeping Black-Shirt Tetras include their low maintenance requirements and their attractive appearance. The main drawback is that they are relatively delicate fish and may not do well in tanks with less than ideal water conditions.

Neon Tetra

Neon tetras are one of the most popular freshwater fish in the aquarium trade. Native to the rivers of South America, these brightly colored fish are relatively small, reaching a maximum size of around 2 inches.

Neon tetras are relatively easy to care for and can live in a wide range of water parameters. However, they prefer slightly acidic water with a temperature in the range of 72-82 degrees Fahrenheit. Neon tetras are peaceful fish and do best when kept in schools of 6 or more individuals.

When kept in a school, neon tetras will display their natural shoaling behavior, which is an important part of their care. Neon tetras can be kept in aquariums as small as 10 gallons, making them a good choice for beginner aquarists. However, because they are so active, neon tetras do best in larger tanks like 55-gallon tanks, where they have plenty of space to swim.

Dwarf Gourami

Dwarf Gouramis are a popular freshwater fish that originates from Southeast Asia. They are usually a bright color, like orange or blue, and have long fins that give them a striking appearance. Dwarf Gouramis typically grow to be about 2-3 inches long, making them a perfect size for a 55-gallon tank.

Dwarf Gouramis prefer warm water with a neutral pH level and moderate hardness. They are also relatively peaceful fish, although they may sometimes spar with others of the same species. In terms of tank size, you can keep up to 8 Dwarf Gouramis in a 55-gallon tank. Some of the advantages of this fish include their low maintenance requirements and their brightly colored bodies.

However, one of the drawbacks is that they are susceptible to diseases like Ich if their water conditions are not ideal. Overall, the Dwarf Gourami is a great option for those looking for a low-maintenance fish with a beautiful appearance.

Cherry And Ghost Shrimp

Cherry and Ghost shrimp are two of the most popular types of shrimp for aquariums. Both originate from Asia, with Cherry shrimp coming from Taiwan and Ghost shrimp from Thailand. They are both small shrimp, with Cherry shrimp typically reaching a size of 1-2 inches and Ghost shrimp about 1 inch.

Usually, they are both very adaptable and can tolerate a wide range of temperatures and pH levels. However, Shrimp do prefer slightly acidic water. In terms of temperament, Cherry shrimp are very peaceful, while Ghost shrimp can be a bit more skittish. Both types of shrimp make great additions to a community tank as long as they are properly acclimated.

As far as tank size goes, both Cherry and Ghost shrimp can do well in a 55-gallon tank. The main advantage of these fish is that they are very easy to care for and maintain. The main drawback is that they are not very durable and can be easily killed by chemicals or other pollutants in the water.

Plectostomus

Plectotomuss is a tropical fish that originates from the waters of Southeast Asia. It is a hardy fish that can adapt to a wide range of water conditions, making it a good choice for beginner aquarium enthusiasts.

Plectostomus grows to be about 10 inches in length, so it is a good mid-sized fish for a 55-gallon tank. When it comes to temperament, Plectostomus is a peaceful fish that gets along well with other tank mates. One advantage of this fish is that it is not overly active, so it does not require a lot of space.

However, one drawback is that Plectostomus is known to be a fin nipper, so it is important to keep an eye on its behavior with other fish. Overall, Plectostomus is a good choice for a 55-gallon tank and can be a peaceful and low-maintenance addition to your aquarium.

Three-Spot Gourami

Three-spot gouramis (Trichogaster trichopterus) are a popular freshwater fish that originates in Southeast Asia. They get their name from the three spots that are located on their bodies, and they are a member of the Osphronemidae family, which includes other well-known fish such as bettas and paradisefish.

Three-spot gouramis typically grow to be about 4 inches long, making them a good choice for medium to large tanks. They also prefer slightly warmer water temperatures and neutral to slightly alkaline water, making them well-suited for many different types of tanks. In terms of temperament, three-spot gouramis are generally peaceful fish, although they can be territorial with other gouramis.

When it comes to keeping them in a 55-gallon tank, you can usually keep up to six fish, although more may be possible if the tank is larger or has more hiding places.

Cory Catfish

Cory catfish are a popular choice for aquariums because they are relatively easy to care for and thrive in a wide range of water conditions. Native to South America, these bottom-dwelling fish typically only grow to be a few inches long.

Corys prefer water that is neutral to slightly acidic with a temperature between 68 and 77 degrees Fahrenheit, making them well-suited for most home aquariums. These fish are also peaceful by nature and can be kept with a variety of other species.

When it comes to stocking a 55-gallon tank, most experts recommend keeping no more than six Cory catfish. This allows each fish plenty of space to swim and reduces the likelihood of aggression. With proper care, Cory catfish can be a fun and rewarding addition to any freshwater aquarium.

Kuhli Loach

The Kuhli loach originates from Southeast Asia, where it is found in slow-moving freshwater streams and rivers. It is a small fish, typically growing to only 2-3 inches in length. Kuhli loaches are very peaceful fish, and they do well when kept in groups.

In terms of water parameters, Kuhli loaches prefer slightly acidic water with a temperature range of 72-82 degrees Fahrenheit. When it comes to keeping Kuhli loaches in a home aquarium, a 55-gallon tank is a good size. You can keep up to 10 Kuhli loaches in a 55-gallon tank, provided that you maintain proper water conditions.

Overall, the Kuhli loach is a great choice for beginner aquarists. They are hardy fish that are relatively easy to care for, and they make a beautiful addition to any aquarium.

Angelfish

Angelfish are a popular type of freshwater fish that originates from the Amazon River Basin. They are relatively small fish, with adults typically reaching a size of 4-6 inches. Angelfish are relatively easy to care for and can be kept in a wide range of water parameters. They are peaceful fish but can sometimes be aggressive towards other tank mates.

When kept in a 55-gallon tank, it is recommended to keep only 2-3 Angelfish. Any more than this, and the fish may become stressed and quarrelsome. With proper care, Angelfish can make a beautiful and rewarding addition to any aquarium.

Cherry Barb

The Cherry Barb (Puntius titteya) is a small, peaceful fish that originates from Sri Lanka. They are one of the few barb species that are suitable for community tanks, as they are relatively small (about 2 inches in length) and have a peaceful temperament.

Cherry Barbs are also relatively easy to care for, as long as their water parameters are kept within a certain range. They prefer water that is on the acidic side, with a pH of 6.0-7.0 and a temperature of 72-79 degrees Fahrenheit.

In terms of tank mates, they do best with other small, peaceful fish. When it comes to feeding, Cherry Barbs are not particularly fussy eaters and will accept most types of dry and frozen foods.

Overall, they are an excellent choice for beginner aquarists or anyone looking for a low-maintenance fish for their community tank. In a 55-gallon tank, you could easily keep a school of 8-10 Cherry Barbs.

Cardinal Tetra

The Cardinal Tetra is a peaceful fish that originates from the rivers of South America. They are small fish, only reaching about 2.5 inches in length at full size. Cardinals are very sensitive to changes in water parameters, so it is important to keep a close eye on the temperature and pH of their tank. They prefer warm water with a neutral pH.

Cardinals are also sensitive to changes in lighting, so care should be taken to maintain a consistent light schedule. When kept in a well-maintained tank, Cardinals are peaceful and make good tank mates for other small fish. They can be shy at first but will quickly become accustomed to their new surroundings.

Cardinals are schooling fish, so they should be kept in groups of at least six individuals. In a 55-gallon tank, you could comfortably keep a school of 12 Cardinal Tetras.

Fancy Guppy

The Fancy Guppy is native to South America and is one of the most popular freshwater aquarium fish. They are relatively small, only growing to about 2 inches in length. Fancy Guppies are also very adaptable and can thrive in a wide range of water parameters. As long as the tank has plenty of hiding places and a good filtration system, these fish will do well.

Fancy Guppies are also very peaceful, making them a good choice for community tanks. In general, you can keep 3-5 Fancy Guppies per 20 gallons of water. So, in a 55-gallon tank, you could keep up to 10 Fancy Guppies!

Platy

Platies are a great choice for beginner fishkeepers or those looking for a peaceful community fish. These cheerful tropical fish are easy to care for and relatively inexpensive, making them a popular choice for home aquariums.

Platies are native to warm waters in Central and South America and usually grow to be 2-3 inches long. They prefer water with a pH between 7.0 and 8.5 and a temperature of 72-78 degrees Fahrenheit.

When it comes to temperament, platies are generally peaceful fish that get along well with other tank mates. They are active swimmers and love to explore their surroundings, so it’s important to provide them with plenty of hiding places.

Also, Platies are very easy to care for and can live in a wide range of water conditions. They are also relatively resistant to disease, making them a low-maintenance option for beginner aquarists.

As far as tank size goes, Platies can be kept in tanks as small as 10 gallons, but they will thrive in larger tanks. In a 55-gallon tank, you could keep up to 8 Platies without overcrowding the tank. All in all, Platies make an ideal choice for beginner fishkeepers or those looking for

Zebra Danio

If you’re looking for a lively, fun-loving fish to add to your 55-gallon tank, then the zebra danio is a great choice. This small fish originates from South Asia and can reach a maximum size of about 2 inches.

Zebra danios are relatively tolerant of different water parameters but do best in water that is slightly acidic with a temperature of 68-75 degrees Fahrenheit. One of the things that makes zebra danios such great tank mates is their generally peaceful temperament. That said, they can sometimes be nippy with long-finned fish, so it’s best to keep them with other short-finned fish or choose a tank mate that is larger than them.

In terms of how many zebra danios to keep in a 55-gallon tank, a good rule of thumb is about one fish per 10 gallons of water. So, in a 55-gallon tank, you could keep anywhere from 5 to 11 zebra danios.

Oscar

If you’re looking for a fish to add to your 55-gallon tank, you might want to consider an Oscar. These fish are native to South America and can grow to be quite large – up to 18 inches in length. They prefer waters with a neutral pH and moderate hardness, making them a good choice for many home aquariums.

Oscar is also relatively easy to care for and has a peaceful temperament, making them a good option for beginner fish keepers. And, because they’re such big fish, they can help to keep your tank clean by eating smaller debris and leftover food. Just be sure not to overcrowd your tank – ideally, you should only keep one to two Oscar per 55 gallons of water.

Discus Fish

Discus fish is a species of cichlid native to the Amazon Basin. They are some of the most popular aquarium fish due to their beautiful color and patterns. Discus fish can reach up to 8 inches in diameter, making them one of the larger species of cichlid.

Although they are relatively large fish, they can be kept in a 55-gallon tank as long as they are the only occupants. This is because discus fish require specific water parameters that other fish cannot tolerate. For example, discus fish prefer warm water with a high pH level. They are also very sensitive to changes in water quality, so it is important to maintain consistent conditions in their tank.

In terms of temperament, discus fish are generally peaceful and can be kept with other peaceful species. However, they can be territorial towards other cichlids and may engage in aggression if kept together. Overall, discus fish make an excellent addition to any freshwater aquarium.

Ram Cichlids

Ram cichlids are a popular choice for freshwater aquariums, and they’re especially well-suited for 55-gallon tanks. Origin in South America, these fish are relatively small, reaching a maximum size of about 4 inches. They’re also relatively easy to care for, as they’re tolerant of a wide range of water parameters.

In terms of temperament, ram cichlids are generally peaceful fish, although they can be aggressive towards tank mates that are similar in size or shape. When it comes to stocking a 55-gallon tank with ram cichlids, a good rule of thumb is to add one fish per 10 gallons of water. So, for a 55-gallon tank, you could add 5 or 6 fish.

Rainbowfish

If you’re looking for a colorful addition to your 55-gallon tank, Rainbowfish is a great option. These fish are native to Australia and New Guinea, and they come in a wide variety of colors and patterns.

Rainbowfish typically range from 2-4 inches in size, and they prefer water that is slightly acidic to neutral with a temperature of 72-82 degrees Fahrenheit. When it comes to temperament, Rainbowfish are generally peaceful fish that do well in groups. In a 55-gallon tank, you can typically keep 8-10 Rainbowfish.

Goldfish

Goldfish are a popular choice for freshwater tanks. They are relatively easy to care for, and they come in a wide variety of colors and sizes. Goldfish are also a good choice for larger tanks because they can grow to be fairly large fish. The origin of goldfish is unclear, but it is thought that they were first bred in China.

Today, goldfish are found all over the world. Goldfish come in many different sizes, but the average fish will reach about 10 inches in length. When it comes to water parameters, goldfish prefer cool water with a pH range of 6.0-8.0.

Goldfish are generally peaceful fish, but they can be aggressive towards smaller tank mates. When stocking a 55-gallon tank, you should aim for 2-4 goldfish. However, keep in mind that goldfish produce a lot of waste, so you may need to provide additional filtration to keep the water clean.

Paradise Fish

The Paradise Fish is a beautiful fish that originates from Southeast Asia. It’s one of the most popular fish in the aquarium trade, and it’s a great choice for a 55-gallon tank. The Paradise Fish can grow up to 6 inches in length, and it prefers water that is slightly acidic with a temperature between 72-82 degrees Fahrenheit.

However, Paradise Fish can be aggressive towards other fish, so it’s best to keep only one or two in a tank. All in all, the Paradise Fish is a stunning fish that make a great addition to any aquarium.

Jewel Cichlid

The Jewel Cichlid is a beautiful fish that originates from Central and South America. It’s a popular choice for aquariums because of its vibrant colors and patterns. Jewel Cichlids are relatively small, only reaching about 6 inches in length.

When it comes to water parameters, they prefer a pH of 6.5-7.5 and a temperature of 77-86 degrees Fahrenheit. As for temperament, Jewel Cichlids can be aggressive, so it’s best to keep only one per tank unless you’re planning to breed them. If you’re looking for a beautiful and vibrant fish to add to your 55-gallon tank, the Jewel Cichlid is a great option.

Jack Dempsey Cichlid

The Jack Dempsey cichlid is a freshwater fish that originates from Central America. It gets its name from the heavyweight boxing champion of the 1920s, Jack Dempsey. This fish is a popular choice for aquariums because of its vibrant coloration and relatively peaceful temperament.

The Jack Dempsey cichlid can grow to be about 10 inches in length, making it a good option for 55-gallon tanks. This fish prefers water with a pH level of 6.5-7.5 and a water temperature of 75-81 degrees Fahrenheit. When it comes to tankmates, the Jack Dempsey cichlid can be aggressive towards smaller fish, so it is best to keep them with fish that are similar in size. In a 55-gallon tank, you can keep up to one to two of these fish.

Harlequin Rasboras

Harlequin Rasboras are schooling fish originating from Southeast Asia. They are relatively small, only reaching about 2 inches in size when fully grown. When choosing fish for a 55-gallon tank, it’s important to consider the water parameters they require.

Harlequin Rasboras do best in slightly acidic to neutral water with a temperature between 72 and 82 degrees Fahrenheit. They are also fairly easy to care for, making them a good choice for beginner aquarists. When it comes to temperament, these fish are peaceful and can be kept with a variety of other species. In terms of tank mates, it’s best to stick with other small, peaceful fish.

As far as how many Harlequin Rasboras to keep in a 55-gallon tank, a good rule of thumb is 1 fish per 10 gallons of water. Therefore, you could comfortably keep 5-6 of these fish in a 55-gallon tank.

Boeseman Rainbow

The Boesemani Rainbow is a stunning freshwater fish that originates from New Guinea. It is known for its vibrant colors, which range from electric blue to deep purple. These fish are relatively small, reaching a maximum size of around six inches.

When it comes to water parameters, Boesemani Rainbow are relatively adaptable and can thrive in a wide range of tanks. However, they prefer water that is on the cool side and will do best in a tank that is at least 55 gallons.

In terms of temperament, these fish are generally peaceful and make an excellent addition to a community tank. When it comes to stocking a 55-gallon tank, you could keep up to six of these fish.

Bluefin Notho

The Bluefin Notho is a beautiful fish that originates from the streams and rivers of South America. They are relatively small fish, only growing to be about 4 inches in length. When it comes to water parameters, they prefer it to be on the acidic side with a temperature between 72-82 degrees Fahrenheit.

Bluefin Nothos are also known to be very peaceful fish, which makes them a great addition to any community tank. When kept in a 55-gallon tank, you can typically keep 4-6 of these fish together. All in all, the Bluefin Notho is an excellent choice for anyone looking for a low-maintenance fish that will add some color and personality to their aquarium.

Electric Blue Harp Cichlid

The electric blue harp cichlid originates from the waters of Lake Malawi in Africa. These fish are relatively small, with adults reaching a maximum size of about 4 inches.

Electric blue harp cichlids prefer water that is slightly alkaline, with a pH of around 7.5-8.5. These fish are also known for being quite peaceful, making them a good choice for community tanks. In terms of stocking, a single electric blue harp cichlid can be kept in a minimum tank size of 30 gallons.

However, because these fish enjoy swimming in groups, it is recommended to keep at least 3-4 fish together. As a result, a 55-gallon tank would be a better option for keeping electric blue harp cichlids.

Florida Flag Fish

The Florida flag fish is a beautiful little creature that originates from, you guessed it, Florida! They are a peaceful community fish that only gets to be about 2.5 inches big. This makes them a perfect choice for a 55-gallon tank. The ideal water parameters for these guys are a pH of 7.0-8.5, a water hardness of 5-19 dKH, and a temperature of 72-78 degrees Fahrenheit.

As for tank mates, they do best with other small, peaceful fish like neon tetras or goldfish. Florida flag fish are also great at eating algae, so if you’re looking for a little help with your tank upkeep, they might be the fish for you!

One downside to keeping Florida flag fish is that they can be a little nippy, so make sure to keep an eye on your other tank mates and make sure everyone’s getting along. All in all, the Florida flag fish is a hardy little fish that makes a great addition to any community tank!

Gold Nugget Pleco

The Gold Nugget Pleco originates from the rivers of South America. They get their name from their distinctively gold coloration and their nugget-like shape. These plecos typically grow to be between 4 and 6 inches long, making them a good choice for a 55-gallon tank.

Gold Nugget Plecos are relatively low-maintenance fish, but they do prefer certain water conditions. The ideal pH range for these fish is between 6.5 and 7.5, and the ideal water temperature is between 70 and 80 degrees Fahrenheit.

Gold Nugget Plecos can also live in a variety of different tank sizes, but they will thrive best in larger tanks. When choosing tankmates for your Gold Nugget Pleco, it is important to choose fish that are of similar size and temperament. Some good choices for tankmates include other plecos, armored catfish, and tetras.

Celestial Pearl Danio

The Celestial Pearl Danio is a small freshwater fish that originates from Myanmar. It is a peaceful community fish that is well-suited for beginner aquarium hobbyists. The Celestial Pearl Danio grows to be approximately 2 inches in length and should be kept in groups of at least five fish. When kept in groups, they will be much more active and display their natural schooling behavior.

Celestial Pearl Danio prefers water with a neutral pH and a temperature between 72-78 degrees Fahrenheit. They are compatible with most other similar-sized freshwater fish and prefer to live in planted tanks with plenty of hiding places. The ideal tank size for the Celestial Pearl Danio is at least 20 gallons. However, since these fish are relatively small, a 55-gallon tank would be more than sufficient for a small group of them.

Electric Yellow Lab

The Electric Yellow Lab is a brightly colored fish that originates from the rivers of Africa. They are a peaceful species that gets along well with other tankmates, and they are known for their playful personalities. Electric Yellow Labs are relatively small fish, growing to a maximum size of about six inches. They prefer water that is neutral to slightly acidic, with a temperature range of 72-82 degrees Fahrenheit.

When kept in an aquarium, they should be provided with plenty of hiding places and plenty of open space to swim. In terms of tankmates, Electric Yellow Labs do best with other peaceful fish. They can also be kept with African cichlids, provided that the tank is large enough and that there is ample space for everyone to spread out.

Therefore, a 55-gallon tank is best for keeping Electric Yellow Labs since they need plenty of space to thrive.

German Blue Ram

German blue rams are a type of cichlid that originates from South America. They are a relatively small fish, reaching a maximum size of around 2.5 inches. German blue rams are very peaceful fish and can be kept in a community tank with other peaceful species. They prefer water with moderate hardness and a neutral pH.

When it comes to stocking a 55-gallon tank, German blue rams are an excellent choice. They are relatively small fish, so you could keep 4-6 of them in a 55-gallon tank.

German blue rams are also very peaceful fish, so they would do well in a community tank. Just be sure to choose tank mates that have similar size and water parameters.

Green Terror Cichlid

The Green Terror Cichlid is a freshwater fish that originates from the rivers of South America. It is a popular choice for aquariums because it is relatively easy to care for and can reach a sizable size (up to 12 inches in length).

Green Terror Cichlids are also known for their vibrant colors and active temperament. However, when choosing fish for a 55-gallon tank, it is important to consider their ideal water parameters. Green Terror Cichlids do best in water that is neutral to slightly acidic, with a temperature range of 72-82 degrees Fahrenheit. They are also relatively hearty fish and can tolerate a wide range of water conditions.

But Green Terror Cichlids can be quite aggressive, so it is advisable to keep only one or two per tank. With proper care, these fish can thrive in a home aquarium and provide years of enjoyment.

Peacock Cichlid

The Peacock Cichlid is a beautiful fish that originates from Africa. It is a large fish, growing up to 16 inches in length, so it needs a lot of space to swim. It also requires fairly specific water parameters, including a pH level of 6.5-8 and a water temperature of 72-82 degrees Fahrenheit.

Furthermore, the Peacock Cichlid can be aggressive, so it’s important to do your research before adding one to your tank. With that said, if you have the right setup and you’re prepared for an aggressive fish, the Peacock Cichlid can be a great addition to your 55-gallon tank.

As far as how many you can keep in a tank, experts recommend one Peacock Cichlid per 20 gallons, so you could theoretically keep three in a 55-gallon tank. However, it’s always best to err on the side of caution, so you may want to stick to two fish.

What Are The Things To Consider When You Stock A 55 Gallon Tank?

Well! maintaining a fish tank properly is not an easy task as it requires time, money, and patience, but the result is definitely rewarding. There are a lot of things that should be taken into account when you stock your tank.

Since some of you might be completely new to fishkeeping, I will help you with this. Here are some things to consider when you stock your 55-gallon tank:

Area Needed For Fish

The first and foremost thing to consider is the space that your fish will need. It is important to know because some fish can grow really large, and you don’t want your fish to feel cramped up in the tank. Secondly, different species of fish have different swimming abilities. Some fish, like bettas, are poor swimmers, so they require less space, while some other fish, like barbs, are good swimmers, and they need more space to swim around.

Type Of Fish

Another thing to consider is the type of fish you want in your tank. This is important because you don’t want your tank to be overstocked. If you stock your tank with fast-growing fish then they will quickly outgrow the tank and if you stock it with slow-growing fish, they might not have enough space to grow properly.

Type Of Tank You Want

The type of tank you want also plays a very important role. If you want a community tank then you need to make sure that the fish you are stocking are compatible with each other. On the other hand, if you want a single fish tank then you need to make sure that the fish you are stocking is compatible with the size of the tank.

Temperament Of Fish

The behavior of the fish you keep is very crucial when you want of tank full of different fish species. If you are stocking an aggressive fish then you need to make sure that it is the only fish in the tank. On the other hand, if you are stocking a semi-aggressive fish then you need to make sure that it is compatible with the other fish in the tank.

Compatibility Of Fish

The compatibility of fish, whether your fish can coexist with each other or not, is a very important thing to consider when stocking your tank. There are some fish that just can’t live together because they might fight or they might be too big for the tank.

So, you need to make sure that the fish you are stocking are compatible with each other. If they are not compatible, then they might fight with each other, and this can lead to serious injuries or even death.

Dwelling Zones Of Fish

Last but not the least, you need to consider the dwelling zones of the fish. This is important because you don’t want your fish to be in an area where they are not comfortable. Some fish, like bettas, need to be in the middle of the tank, while some other fish, like barbs, need to be in the bottom of the tank.

Now that you know what to consider when you keep fish in your tank, wouldn’t you want to know how to choose the best fish for your 55-gallon tank?

How to Choose The Best Fish For Your 55 Gallon Tank?

As mentioned earlier, I like a colorful and planted tank that inhabitants different species of fish. But all the fish species cannot do well together. You need to take into account the fish size, temperament, and activity level when stocking your tank.

Especially the nature of fish plays a crucial role if you want to stock your tank with many fish. The bottom dwellers go well with the mid-water or surface fish. The schooling fish does best with their own kind.

And don’t forget that some fish are predators, so it’s not a good idea to put them together with smaller fish. Here are some fishes that you can find in different water levels:

Bottom Dwellers

If you’re looking to add some interesting fish to your 55-gallon tank, bottom-dwelling fish are a great option. These fish spend most of their time near the bottom of the tank, where they scavenge for food.

Cory Catfish

Cory catfish are one of the most popular bottom dwellers. They are peaceful and relatively easy to care for. In a 55-gallon tank, you can keep up to six cory catfish. However, the only downside is that they are very sensitive to water quality.

Plecostomus

Plecostomus, or plecos, are another popular bottom-dwelling fish. They are armored with tough scales and have suction cups on their bellies that help them cling to rocks and driftwood. You can easily keep around four plecos in a 55-gallon tank.

Cherry And Ghost Shrimp

If you’re looking for something, a little different, cherry and ghost shrimp are a great option. These shrimp are transparent and have red or orange markings. They are very active and make great additions to any aquarium. The ideal number of shrimp to keep in a 55-gallon tank is around 10.

Loaches (Kuhli Loach And Clown Loach)

Loaches are another interesting bottom-dwelling fish. They have long, slender bodies and are often brightly colored. Kuhli loaches are a popular choice because they are very peaceful. However, clown loaches can be a bit more aggressive. You can keep up to six loaches in a 55-gallon tank.

Mid-Water Dwellers

Mid-water fish are those that spend the majority of their time in the middle layers of the aquarium. These fish are typically active swimmers and do best in tanks with plenty of open space to swim. Popular mid-water dwelling fish include:

Cherry Barbs

Cherry barbs are small, peaceful fish that do well in groups. They are active swimmers and prefer tanks with plenty of open space. Cherry barbs are ideal for a 55-gallon tank and can be kept in groups of six or more.

Angelfish

Angelfish are a popular choice for freshwater aquariums. They are relatively easy to care for and are available in a variety of colors and patterns. Angelfish do best in tanks with plenty of hiding places and should be kept in pairs or groups of four or more.

Dwarf Gourami

Dwarf gouramis are peaceful, tropical fish that make a great addition to any freshwater aquarium. They are relatively easy to care for and do best in tanks with plenty of hiding places. Dwarf gouramis are ideal for a 55-gallon tank and can be kept in pairs or groups of four or more.

Neon And Other Tetras

Neon tetras are small, peaceful fish that do well in groups. They are active swimmers and prefer tanks with plenty of open space. Neon tetras are ideal for a 55-gallon tank and can be kept in groups of six or more.

Top Swimmers

Top swimmers are the fish that spend the vast majority of their time in the open water column of the aquarium. They are not shy fish that will cower in the shadows or hide behind aquarium décor. All of these fish are schooling fish, which means they do best when kept in groups. Some of the best top swimmer fish for a 55-gallon tank are:

Zebra Danio

A zebra danio is a small, active fish that is ideal for a 55-gallon tank. They are peaceful fish that get along well with other fish like them. The ideal number of zebra danios to keep in a 55-gallon tank is six. Although they are peaceful fish, they are also very active and need a lot of space to swim.

Guppy

Guppies are one of the most popular fish for beginner aquarium enthusiasts. They are hardy fish that can tolerate a wide range of water conditions. Guppies are also livebearers, which means they give birth to live young. The ideal number of guppies to keep in a 55-gallon tank is ten. However, it is important to note that you will need to provide hiding places for the fry (baby guppies) as they will be eaten by their tank mates if given a chance.

Swordtails

Swordtails are another type of livebearer that is popular among beginner aquarium enthusiasts. They get their name from the long, sword-like tail fin that males have. Swordtails are peaceful fish that do well in a community tank. The ideal number of swordtails to keep in a 55-gallon tank is eight. The only drawback to keeping swordtails is that they can be prolific breeders, and you may end up with more fry than you know what to do with!

Platies

Platies are another type of livebearer that is similar in care to guppies and swordtails. They are peaceful fish that do well in a community tank. The ideal number of platies to keep in a 55-gallon tank is eight. They are known to be good algae eaters and can help keep your tank clean.

Mollies

Mollies are another type of livebearer that is similar in care to guppies and swordtails. They are peaceful fish that do well in a community tank. The ideal number of mollies to keep in a 55-gallon tank is six. They can be a wonderful fish for you if you are looking for something that is both peaceful and helpful in keeping your tank clean.

I hope you now have enough about the best fish for a 55-gallon and their types. So, lets move further and know a little about the stocking ideas of a 55-gallon tank.

How Can You Stock A 55-Gallon Tank?

A 55-gallon tank is a big enough tank that can hold large fish too. So, you will have a lot of stocking ideas for your tank. You can go with a single species tank, or you can have a community tank with different kinds of fish. It all depends on what you want.

Here are some stocking ideas for a 55-gallon tank:

Rams In Community Tank

Rams are beautiful fish that come in many different colors. They are peaceful fish that get along well with other fish. They are also easy to care for. The ideal number of rams to keep in a 55-gallon tank is six.

Since these fish are not aggressive at all, you will not have any problems with them. You can easily keep them in a community tank with other fish like tetras, guppies, and mollies.

Goldfish Only Tank

Goldfish are one of the most popular fish to keep in an aquarium. They are easy to care for and they come in many different colors. The ideal number of goldfish to keep in a 55-gallon tank is six. Mostly aquarists suggest a goldfish-only tank because they are messy eaters and they produce a lot of waste.

But if you have a good filtration system, then you can easily keep them in a community tank. Just make sure that the other fish in the tank is not too small because goldfish might eat them.

Livebearers Tank

Livebearers are fish that give birth to live young. The most popular livebearers are guppies, mollies, and platies. These fish are easy to care for, and they are very peaceful. The ideal number of livebearers to keep in a 55-gallon tank is 30.

You can easily keep them in a community tank with other peaceful fish. But make sure that you have enough plants in the tank because livebearers like to hide in the plants.

African Cichlids Only Tank

African cichlids are one of the most popular fish to keep in an aquarium. They are very beautiful and they come in many different colors. African cichlids are also very aggressive. The ideal number of African cichlids to keep in a 55-gallon tank is six.

You can only keep them in a single-species tank because they will kill any other fish that you put in the tank with them.

Tank For Angelfish And Tetras

Angelfish are very beautiful fish that come in many different colors. They are also very peaceful. Tetras are small fish that come in many different colors. The ideal number of angels and tetras to keep in a 55-gallon tank is six of each.

You can easily keep them in a community tank because they are both peaceful fish. But make sure that you have enough plants in the tank because angels like to hide in the plants.

Tank For Discus And Tetras

Discus and tetras are both very popular fish to keep in an aquarium. They both are beautiful and come in various color morphs. Discus are peaceful fish, but tetras can be semi-aggressive. The ideal number of discus and tetras to keep in a 55-gallon tank is six of each.

They go well together in a community tank. You just need to make sure that you have enough plants in the tank because discus like to hide in the plants.

Oscars Only Tank

Oscars are one of the most popular fish to keep in an aquarium. They are very beautiful and they come in many different colors. The Oscars are also very aggressive, so it’s best if you keep them in a single species tank. The ideal number of Oscars to keep in a 55-gallon tank is six.

Tank For Barbs And Rainbows

Another colorful and beautiful tank option for you might be to stock it with barbs and rainbows. Both of these fish are very peaceful. So, you won’t have any problem keeping them in a community tank. The ideal number of barbs and rainbows to keep in a 55-gallon tank is six of each.

Green Spotted Puffer Tank

If you are looking for a more unique fish to keep in your aquarium, then you might want to consider a green spotted puffer. These fish are very beautiful, and they are also very unique in appearance. The ideal number of green spotted puffers to keep in a 55-gallon tank is three.

They are semi-aggressive, so you need to be careful when choosing tank mates for them. It’s best if you only keep them with other semi-aggressive fish like damselfish and dottybacks.

As you can see, there are much different fish that you can keep in a 55-gallon tank. It all depends on what you are looking for in an aquarium.

What Are The Equipment For A 55 Gallon Tank?

The equipment you use is the most important thing that matters a lot for the well-being of fish and the longevity of the tank. If you want your fish to be happy and healthy then you need to have the ideal equipment for a 55-gallon tank. The ideal equipment includes:

Heater

A heater is necessary to maintain a consistent water temperature. It is crucial to maintain the perfect water temperature for the fish to thrive and stay healthy. The perfect water temperature for a 55-gallon tank is between 74-78 degrees Fahrenheit. But it may even vary according to the fish you keep.

However, the perfect heater for a 55-gallon tank would be the one that can heat the entire tank evenly without creating any hotspots.

HEATERS:

Filter

A filter is another essential piece of equipment for a 55-gallon fish tank. It helps to keep the water clean and free from toxins and other harmful chemicals. There are different types of filters available in the market, but you need to choose the one that suits your tank size and the type of fish you keep.

You can choose from the following:

Lights

Lights are not only necessary for the fish to see but also to promote the growth of plants in the aquarium. Plants need light to photosynthesize and produce oxygen for the fish. The perfect lighting for a 55-gallon tank would be full-spectrum LED lights.

MingDak LED Aquarium Plant Light is a good choice.

Other Equipment

In addition to the above-mentioned equipment, you also need some additional equipment like a water pump, an air pump, and an aquarium stand. These are not essential, but they make the fishkeeping experience more enjoyable and convenient.

So, what do you use for your fish tank? Is there any additional equipment too?

How To Set Up A 55 Gallon Tank?

You’ve got your 55-gallon tank, and you’re ready to get started. But before stocking a fish, you must know the ideal way to set up a 55-gallon tank. This includes everything from deciding on the perfect location to cycle your tank.

I know this seems a little challenging, but don’t worry. I will give you the step by step guide on how to set up your 55-gallon tank the right way.

Step One: Location For Your Tank

The first step is to find the perfect location for your tank. When deciding on a location, you want to make sure it’s in an area that can support the weight of a full 55-gallon tank. You also want to avoid putting your tank in direct sunlight as this can cause algae growth.

Once you’ve found the perfect location, it’s time to start setting up your tank.

Step Two: Adding Substrate

Now that you’ve chosen the perfect location for your tank, it’s time to set it up. The first thing you’ll need to do is add a layer of gravel to the bottom of your tank. You can use either live or artificial plants in your gravel.

Next, you’ll want to add a layer of rocks on top of your gravel. This will help create a natural look for your tank.

Step Three: Cycle Your Tank

The next step is to cycle your tank. This process can take anywhere from two to eight weeks, so it’s important to be patient. Cycling your tank will help establish a healthy environment for your fish.

To cycle your tank, you’ll need to add ammonia to the water. You can do this by adding a small amount of fish food to the water. Ammonia will help create nitrites in the water, which are necessary for the cycling process.

After you’ve added ammonia to the water, you’ll need to add a bacteria starter kit. This will help create nitrifying bacteria in the water. Nitrifying bacteria are necessary for the cycling process because they help convert ammonia into nitrites.

Step Four: Choose Your Fish

Now that your tank is set up and cycled, it’s time to choose your fish. When choosing fish for a 55-gallon tank, you’ll want to consider the size of your fish and the number of fish you’ll need. You’ll also want to choose a variety of fish that will be compatible with each other.

Compatible fish for a 55-gallon tank include:

Barbs
Gouramis
Danios
Tetras

Step Five: Add Your Fish

Once you’ve chosen your fish, it’s time to add them to your tank. When adding fish to a new tank, you’ll want to add a few fish at a time. This will help prevent stress on your fish and allow them to acclimate to their new environment.

After you’ve added your fish, it’s important to monitor them closely. You’ll want to make sure they’re eating and that their behavior is normal.

If you follow these steps, you’ll be well on your way to setting up a successful 55-gallon fish tank.

Some FAQs

How Many Fish Can A 55 Gallon Tank Handle?

The answer to this question really depends on the type of fish you have. If you have larger fish, then you obviously won’t be able to fit as many in your tank. However, if you have smaller fish, you could probably fit quite a few more in there.

How To Maintain A 55 Gallon Tank?

Maintaining a 55-gallon tank is actually not that difficult. The most important thing you need to do is keep the water clean. You can do this by doing regular water changes and making sure your filter is working properly.

Here are a few tips and tricks for maintaining a 55-gallon tank:

Do a 20-30% water change every week or two. This will help to keep the water quality high and prevent your fish from getting sick.
Make sure you have a good filter. A good filter will help to keep the water clean and clear.
Don’t overfeed your fish. Overfeeding can cause water quality issues and make your fish sick.

Is 55 Gallon Tank A Perfect Tank For Beginners?

A 55-gallon tank is actually a great choice for beginners. They are not too difficult to maintain, and you can keep a variety of different fish in them. If you are thinking about getting a fish tank, a 55-gallon tank is a great option.

What Are The Problems With A 55 Gallon Tank?

While a 55-gallon tank is a great option for a beginner, there are a few things you need to be aware of. There are a few potential problems that you might encounter.

First, a 55-gallon tank is heavy. This means that it can be difficult to move around and set up.
Second, a 55-gallon tank can be expensive. The cost of the tank, plus the cost of the fish and other supplies, can add up quickly.
Third, a 55-gallon tank requires more care than a smaller tank. You will need to do more water changes and be more diligent about cleaning the tank.

With a little bit of care, you can have a successful 55-gallon fish tank.

Conclusion

Ending up, the best fish for a 55-gallon tank are those which stay relatively small, are peaceful, and can live in a community environment. Some great examples of these kinds of fish include neon tetras, mollies, guppies, danios, and swordtails. All of these fish get along well with others and won’t grow too large, making them the perfect addition to your 55-gallon tank.

Do you have a 55-gallon tank at home?

What are your thoughts on our list of the best fish for a 55-gallon tank? Did we miss any of your favorites? Let us know in the comments below!

Happy fish keeping!