Most Colorful Freshwater Aquarium Fish

Making a community fish tank means you will need a variety of colorful fish. There is an incredible amount of variety within the aquatic world to choose from. When there are too many choices, it is hard to determine which one to pick. In this article, I will talk about my favorite 6 most colorful freshwater aquarium fish.

We can not keep every fish in the same tank. That will be a disaster. We must know which fish are compatible with each other and have the same environmental requirement. knowing this will help you to identify what to keep in your aquarium. Now, We should discuss the Colorful freshwater aquarium fish.

Pearl Gourami

Pearl Gourami
Image source

Gourami is one of the most popular species. They have a unique appearance, which makes them stand out even more. They are bright in color and have interesting patterns. They will spend there most of their time near the surface of the tank. They will add vibrant color to your tank.

There are some colorful varieties of Gouramis;

They are easy to take care of and also do well in planted aquariums. In my opinion, they look pretty in the planted aquarium.

  • Common Names: Pearl Gourami.
  • Scientific Name: Trichopodus leerii
  • Family: Osphronemidae.
  • Lifespan: 4-5 Years.
  • Size: 4-5 inches.
  • Tank Size: 25- 30 Gallons (species dependant)
  • Temperature: 75-86oF
  • pH: 6.5-8.0 (Learn more about aquarium pH)
  • Hardness: 5-18 dGh
  • Compatibility: Peaceful community fish.
  • Care Level: Beginner.



Discus fish are available in different patterns, colors, stripes, and spots. They got their name from the disc-shaped bodies. I would not recommend this fish to any beginner. They are shoaling fish, which means you should keep a minimum of 3-5 together. They also need lots of live plants, decorations, and open areas to swim.

  • Common Names: Discus
  • Scientific Name: Symphysodon sp.
  • Family: Cichlidae.
  • Lifespan: 10 Years.
  • Size: 6.5-8 inches.
  • Tank Size: 50 Gallons
  • Temperature: 82o-86oF
  • pH: 6-7
  • Hardness: 2-5 dGH
  • Compatibility: Peaceful community fish.
  • Care level: Expert.

Betta (Betta splendens)

Betta splendensa
Image source

Betta is one of the prettiest freshwater fish in my eyes. You can say they are the most colorful tropical fish. They can grow up to 2 inches. They have different color and pattern types; solid, marble, butterfly, and more. They have also got tail variations; veil, crown, dumbo, half-moon, and more.

Betta is the perfect fish for beginner aquarists. You can house them in 5 gallons planted tank. Also, remember do not keep males and females together. Males are aggressive, so keep them alone. Keeping female betta is rather hard than males.

  • Common Names: Betta Fish, Siamese Fighting fish
  • Scientific Name: Betta splendens
  • Family: Osphronemidae
  • Lifespan: 2-5 years.
  • Size: 2 inches.
  • Tank Size: 5 gallons
  • Temperature: 76o-82oF
  • pH: 6.5-7
  • Hardness: 3-4 dGH
  • Compatibility: Best to keep alone.
  • Care level: Beginner.

Flowerhorn Cichlid

Flowerhorn Cichlid

Flowerhorn Cichlid is a man-made beauty. They are very popular among aquarists. Flowerhorn cichlid has red or orange heads fading into white/golden bodies with dark spots along their lateral line. They are very aggressive fish. You will need at least a 75-gallon tank for only one Flowerhoen Cichlid.

  • Common Names: Flowerhorn, Flowerhorn cichlid, Kamfa, Thai Silk.
  • Family: Cichlidae
  • Lifespan: 8-12 years
  • Size: 10-12 inches
  • Tank size: 75 gallon
  • Temperature: 82o-85oF
  • pH: 6-8.5
  • Hardness: 6-20 dGH
  • Compatibility: Cannot be kept with other fish.
  • Care level: Intermediate.

Cherry Barb (Pnutius titteya)

Cherry Barb

Cherry Barb has red coloring covering its whole body. They are peaceful schooling fish. Malea can get aggressive when wanting to breed. Keep a ratio of one male to two females. The bigger the school, the more active and playful they will be.

  • Common Name: Cherry Barb
  • Scientific Name: Puntius titteya
  • Family: Cyprinidae
  • Lifespan: 5-7 years
  • Size: 2 inches.
  • Tank Size: 20 gallon
  • Temperature: 75o-80oF
  • pH: 6-8
  • Hardness: 3-20 dGH
  • Compatibility: Keep with other peaceful community fish.
  • Care level: Beginner.

Neon Tetra (Paracheirodon innesi)

Neon Tetra

Neon Tetra pretty freshwater fish. They have an iridescent blue stripe that runs from nose to adipose fin and red from tail to dorsal fin. They are schooling fish. You can keep at least 6 Neon Tetra fish in a 10-gallon tank. Do not keep less than 6 Neon Tetra. If you want to see their true nature, consider a big tank with a larger shoal of Neon Tetra.

  • Common Name: Neon Tetra, Neon Fish.
  • Scientific Name: Paracheirodon innesi
  • Family: Characidae
  • Lifespan: 10 years.
  • Size: 1.2 inches
  • Tank size: 10 gallon
  • Temperature: 72o-76oF
  • pH: 6-7
  • Hardness: <10dGH
  • Compatibility: Keep with peaceful community fish
  • Care level: Beginner

Hey, I am Shuvradeb Biswas a content writer. Fishkeeping is my hobby. There are many problems I faced during my first fishkeeping. So, I made the blog to help new fishkeepers.

Leave a Comment