How many fish can you have in a 20 gallon long tank?

Basing on the rule “1 inch fish per gallon of water”, a tank with 20 gallons of water can accommodate twenty of 1 inch fish.

What is the best fish for a 20 gallon tank?

10 Best Fish for a 20-Gallon Tank

  • Cory catfish are among the best fish for a 20-gallon tank. Matthew Mannell [Public domain], via Wikimedia Commons.
  • Mickey Mouse Platy. …
  • Male and female swordtails. …
  • Molly Fish. …
  • Cory Catfish. …
  • Dwarf Gourami. …
  • Neon Tetra. …
  • Zebra Danio.


What fish can live in a 20 gallon tank?

The Best Fish For A 20 Gallon Tank Overall: Tetras or Guppies. Most Unique Fish For A 20 Gallon Tank: Scarlet Badis. Best Big Fish For A 20 Gallon Tank: Dwarf Cichlids.

What other animals can live in a 20 gallon tank?

  • Tetra:
  • Rasbora:
  • Platies:
  • Guppies:
  • Cichlids:
  • Gourami:
  • Corydoras Catfish:
  • Shrimp:


What can I put in a 20 gallon long tank?

Some fish you might consider include: Guppies, Swordfish, Barbs and Danios. Other favorites include: Gouramis, Figure 8 Puffer Fish, Dwarf Pufferfish and Betta Fish. You may also consider Tetras, such as Neon Tetras, Cardinal Tetras and the Black Neon Tetra, or Loaches such as the Kuhli Loach.

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What is the biggest fish you can put in a 20 gallon tank?

What is the biggest fish you could comfortably have in a 20-gallon tank? – Quora. I would recommend a gourami. There are several varieties, the smallest being the dwarf gourami (which can live in as small as 10 gallons), but the honey gourami will happily live alone in a 20 gallon.

Can you put an Oscar in a 20 gallon tank?

20 gallons will be good for a couple months, but increase your frequency of water changes. This will give you plenty of time to get the 55 cycled. The thing is that the 55 is pushing the limits for an Oscar.

Is a 20 gallon fish tank big enough?

A 20 gallon fish tank or aquarium is perfect for new aquarists; it’s large enough to have a nice selection of fish, yet small enough to maintain. A tank of this size allows you to keep a wide variety of different fish, as well as some live plants and other inhabitants such as snails or shrimps.

How many tetras can I put in a 20 gallon tank?

In a 20 gallon, you could keep up to 24 Neon tetras. They are schooling fish that are very active, typically swimming horizontally.

How do you stock a 20 gallon tank?

Stocking Ideas for Your 20-Gallon Fish Tank

  1. The Eye Catcher: 3 Guppies, 2 Mollies, and 2 Platies.
  2. The Swarm: 6 Neon Tetras, 3 Black Phantom tetras, and 5 Glowing Tetras.
  3. Ground-level: 6 Dwarf Corydoras such as the Panda Corydoras Catfish, Skunk Corydoras Catfish, or Albino Corydoras Catfish.


How many goldfish can I put in a 20 gallon tank?

Two common goldfish can be kept in a 20-gallon tank. But two fancy goldfish cannot be kept in a 20-gallon tank as they require more space. So the minimum recommended tank size for keeping one fancy goldfish is 20 gallons. If you wish to keep more than one fancy goldfish, you have to add an extra 10 gallons.

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How many 2 inch fish can I put in a 20 gallon tank?

You can, theoretically, keep twenty 1-inch fish, or ten 2-inch fish, in a 20-gallon tank. This stocking strategy follows the 1 inch of fish per gallon of water rule.

Can I keep angelfish in a 20 gallon tank?

Yes, a 20-gallons tank is perfectly fine for a single angelfish. However, bear in mind that additional angels will require a larger tank. The rule of thumb is 12 gallons more for each additional angelfish.

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