How many fish can you put in a 20 gallon aquarium?

How many fish can you put in a 20 gallon aquarium?

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. Nano fish for nano tanks, right? It’s an easy guideline to follow, but you shouldn’t apply it when stocking fish any larger than 3-4 inches.

How big is a nano tank?

Most nano freshwater aquariums are between 5-10 gallons and saltwater nano aquariums are a little bigger at around 10-20 gallons.

How many fish can I have in a 3 gallon tank?

Following the “1 inch of fish per gallon of water” rule of thumb, you can put three 1-inch fish in a 3-gallon tank. You can also keep invertebrate tank mates with one 2-inch fish, like a betta. You can unknowingly overstock a 3-gallon tank even if you bring home just one pet fish.

How many fish can you have in a 20 Litre tank?

A guideline for a tank of this size is 22cm of fish, 1cm of fish per litre. Fish such as eels which are long but very skinny you can just count a ¼ of their length and fatter or taller fish such as angels and puffer should be counted as 1 ¼ times their length.

How long is a 20-gallon tank?

As a general rule though, your average 20-gallon tank is going to measure in at 30 inches long by 12 inches wide by 12 inches tall.

What fish can go in a 1 gallon tank?

For a one-gallon tank, you should go with the ones that grow up to 1.5 inches like Neon Tetras, Cardinal Tetras, Flame Tetras, and Ember Tetras. They’re active, schooling fish, so you should keep at least three together.

What fish can live in a 5 gallon tank?

Here are 17 fish species that you can keep in a small tank of 5 gallons or larger.

1. Guppy.
2. Betta Fish (Betta splendens)
3. Mollies (Poecilia sphenops)
4. Neon Tetras (Paracheirodon innesi)
5. Harlequin Rasboras (Trigonostigma heteromorpha)
6. White Cloud Mountain Minnow (Trigonostigma heteromorpha)
7. Honey Gourami (Trichogaster chuna)

How big is a 20L tank?

Mid-Sized Aquariums