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.

What fish do well in a 3 gallon tank?

Fish For 3 Gallon Tank

Most starter Betta fish tanks are 3 gal. Guppies – Male guppies in particular are popular fish for beginners with small tanks. They have spectacular, colorful tails and are a lot of fun to watch. Tetras – There is a variety of this species, with one of the most common kinds being Neon Tetras.

How many fish can you put in a 3.5 gallon tank?

One Inch Per Gallon

The most widely known rule for stocking a tank is the one inch of fish per gallon of water rule.

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What fish can live in a 3.5 gallon tank?

For a 3.5 gallon, the best option for me would probably be a betta. These look well on their own. Aside from bettas, you can put any live bearing fish, such as guppies, or a shrimp. Just place one fish, or else it would get overcrowded.

How many guppies can you have in a 3 gallon tank?

So, how many guppies can you have in a 3-gallon tank? Technically, you can keep two guppies in 3-gallons, but a tank of this size is too small for such an active fish.

Can a goldfish live in a 3.5 gallon tank?

You may be tempted to consider a goldfish for a one-gallon tank, but they are not appropriate either. All varieties of goldfish grow much too large for such a small aquarium. They also pollute the water very quickly in a confined space.

What is the most low maintenance fish?

Low-Maintenance Freshwater Fish for Beginners

  1. 01 of 05. Standard Goldfish (Carassius auratus) Goldfish. …
  2. 02 of 05. Neon Tetras (Paracheirodon innesi) Mirko_Rosenau / Getty Images. …
  3. 03 of 05. Betta Fish. Jessie Sanders. …
  4. 04 of 05. Mollies & Platys (Live bearers) isoft / Getty Images. …
  5. 05 of 05. Zebrafish (Zebra danio)


How many tetras can I put in a 3.5 gallon tank?

A Betta is just fine in a 3.5. Three small Tetras like Embers would also be fine. A few Endlers or Celestial Pearl Danios would also work.

Can a Molly live in a 3 gallon tank?

A 3 gallon is too small for platy and a molly, even by themselves. and a school also wouldnt be ideal because they require a lot more swimming space and especially with danios, they are very active.

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How many snails can be in a 3 gallon tank?

In a 3 gallon, I would go with 1 mystery snail and a few nerites.

How many shrimp can live in a 3.5 gallon tank?

Generally you can have I think 10 shrimp per gallon. But, to start off, you would buy 6-10 maybe. That should ensure you get both sexes. You should give the tank at least 2-4 weeks to cycle.

What fish can live in 2 gallon tank?

Best fish for 2 and 2.5 Gallon or nano tanks!

  • Bloodfin Tetras.
  • Cory Catfish.
  • Betta Fish.
  • Small Barbs.
  • Small Tetras.
  • White Cloud Mountain Minnow.
  • Danios.
  • Kuhli Loach.


What fish can live in 1 gallon tank?

Best Fish for 1 Gallon Tanks

  1. Guppies. Guppies are one species of fish that you can keep in a small tank. …
  2. Bettas. Bettas are one of the hardiest species of fishes around. …
  3. Neon Tetras. …
  4. Endlers Live Bearers. …
  5. Zebra Danios. …
  6. White Cloud Minnows. …
  7. Dwarf Spotted Danios.

Can I have just 2 guppies?

Ideally, you should keep just one guppy is a small fish tank. If you keep multiple guppies in a small fish tank, then they will not have enough space to move around. This can stress out your guppies, and they can die due to the stress.

Can you put 3 guppies in a 1 gallon tank?

Guppies. Guppies are another great fish option to go with for a small 1 gallon tank. This is mostly due to the fact that they are very small. … That being said, you should be able to put around 3 or 4 of these small guys in a 1 gallon tank without issue.

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Can guppies die of loneliness?

Guppies do not have emotions like any other species of fish. So guppies do not die due to loneliness, but they can die if they get stressed.

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