By the end of this guide, you’ll know exactly which small fish is ideal for your aquarium.

  • Chili Rasbora (Boraras Brigittae)
  • Neon Tetra (Paracheirodon innesi)
  • Cardinal Tetras (Paracheirodon Axelrodi)
  • Bettas (Betta splendens)
  • Harlequin Rasboras (Trigonostigma heteromorpha)
  • Fancy Guppies (Poecilia Reticulata)

What is the easiest fish to take care of in a small tank?

Mollies and platys are very easy fish to care for and come in many varieties and colors. They can be kept in schools and grow to about three inches in length. We recommend starting with a common variety that is widely available, such as a black molly or red platy.

What fish can I put in a 2 gallon tank?

A gallon of water is about eight liters, so a 2 gallon fish tank worth of water can usually support five or six tetras if they are all small fish and three to four tetras when they are larger. Tetra species such as cories might be able to live in the same size tank because they prefer living alone.

What fish can go in a 5 gallon tank?


Quote from video: You won't want to keep them with fish that like warmer temperatures like guppies but they'll go great with cooler water fish like danios.

Can a goldfish live in a 1-gallon tank?

They are very hardy and resilient, they don’t really require special water care, they do fine in normal room temperature water, and are easy to feed and look after as well. You won’t be able to put more than 1 goldfish in a tank, but a single goldfish will do well in a 1 gallon tank.

What can live in a 1 gallon tank?

Top 10 Best Fish for a One-Gallon Tank

  • Betta Fish. These beautiful creatures are known for their aggressive behavior towards their own kind. …
  • Guppies. …
  • Tetras. …
  • White Cloud Mountain Minnows. …
  • Dwarf Pufferfish. …
  • Pygmy Corydoras. …
  • Dwarf Spotted Danio or Zebra Danios. …
  • Dwarf Platyfish.

What fish needs the smallest tank?

By the end of this guide, you’ll know exactly which small fish is ideal for your aquarium.

  • Chili Rasbora (Boraras Brigittae)
  • Neon Tetra (Paracheirodon innesi)
  • Cardinal Tetras (Paracheirodon Axelrodi)
  • Bettas (Betta splendens)
  • Harlequin Rasboras (Trigonostigma heteromorpha)
  • Fancy Guppies (Poecilia Reticulata)

What size tank do I need for 2 goldfish?

42 gallons

Based on the rules above, the goldfish tank size we recommend for two goldfish is: 42 gallons for two Common goldfish. That’s 30 gallons for the first fish and 12 additional gallons for the second fish.

What fish can fit in a 2.5 gallon?

Small Barbs Fish



The ones suitable for 2 to 2.5-gallon tanks are cherry and checkerboard barbs.

Leave a Reply