AquaStocker

Can a Molly Live With a Bristlenose Pleco?

Yes — a molly and bristlenose pleco are generally compatible.

Updated June 2026
By the AquaStocker team · How we source our data
Yes — generally compatible
MollyMolly
4.0" · 20g min · 72–80°F · Peaceful
+
Bristlenose PlecoBristlenose Pleco
5.0" · 25g min · 73–81°F · Peaceful
Temperatures line up — both thrive around 73–80°F.
pH preferences overlap (7–7.5) — easy to keep both comfortable.
Plan on at least 25 gallons for the pair (the larger of their two minimums).

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Aquarium water test kitwatch your parametersAquarium filtermore filtration = headroomAquarium heaterstable temperature25 gallon aquariumroom for both

FAQ

Can a molly and bristlenose pleco live together?
Yes — a molly and bristlenose pleco are generally compatible. Minimum tank for the pair is about 25 gallons.

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