AquaStocker

Can a Betta Live With a Molly?

Yes — a betta and molly are generally compatible.

Updated June 2026
By the AquaStocker team · How we source our data
Yes — generally compatible
BettaBetta
2.8" · 5g min · 76–82°F · Semi-aggressive
+
MollyMolly
4.0" · 20g min · 72–80°F · Peaceful
Temperatures line up — both thrive around 76–80°F.
pH preferences overlap (7–7.5) — easy to keep both comfortable.
Plan on at least 20 gallons for the pair (the larger of their two minimums).

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Aquarium water test kitwatch your parametersAquarium filtermore filtration = headroomAquarium heaterstable temperature20 gallon aquariumroom for both

FAQ

Can a betta and molly live together?
Yes — a betta and molly are generally compatible. Minimum tank for the pair is about 20 gallons.

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