Can they live together?

Betta and Guppy compatibility

Compare their preferred water conditions and basic behavior.

Betta

Betta / Siamese Fighting Fish

Guppy

Guppy

Use caution

The shared pH range (7.2–7.5) is narrow, so watch for water changes.

Shared environment

Recommended temperature
24 ~ 27°C

Recommended pH
7.2 ~ 7.5

Suggested group sizes

Betta: at least 1

Guppy: at least 3

Check that your aquarium is large enough for both species.

Try it in my aquarium

This is a guide. Individual behavior and aquarium conditions can change the outcome.