2.5 Gallon Fish Tank- What fish are the best choices?

Betta Fish News Medium Club
2 min readAug 12, 2021


2.5 Gallon Fish Tank

Thanks for checking out this quick article on the 2.5 gallon fish tanks.
Here is a quick video to peruse about the subject. Thanks for watching!

2.5 Gallon Tank

Like most choices in life, there are ups and downs to every decision. Here are the goods and bads of the small tank:


  1. Affordable and available.
  2. Great for beginners, or to see if you like keeping fishes.
  3. Have some options for keeping fish.
  4. Easy to store and move around.


  1. Limited on fish choices.
  2. Can outgrow quickly if you like keeping a tank.

Best Fish for 2.5 Gallon Tank

There are few good “fish families” that you should look to for small tanks. We are going to name the types, for more detail check our our full article on our website, details below

1) Guppies
These are peaceful, small, and cute fish. You can keep 1–3 fish in a small tank. We recommend the cobra guppy, as it so darn cool looking, like a snake!

These are also peace-loving, tiny fish. You can keep 1 or 2 fish in a small tank.
The neon tetra or the ember tetra are decent choices.

3) Barbs
Barbs are so underrated, and there are tons of kinds. The golden dwarf barb is a good choice for small tanks.

2.5 Gallon Betta Tank

So can you keep bettas in it? The Answer is, simply YES! A single betta can work in a small, 2.5 gallon tank. The caution is to NEVER place two betta males together, as you will end up with only one when they sort things out. They are aggressive fish, and they are bred to fight!

2.5 Gallon Aquarium: Conclusion

Thanks for reading! We hoped you enjoyed this little primer on 2.5 gallon fish tank and bettas.

To find out what complete options that you have in 2.5 gallon fish tanks, please check out our full, in-depth article:


Written by Tom Baxter, Betta Fish News



Betta Fish News Medium Club

Tom Baxter has spend decades keeping and learning about Betta fish. He loves the challenges and joys he has learned about and shares on www.bettafishnews.club