Can German blue rams live with mollies?

⚠️ Caution Sometimes, with care
German blue ramMolly
Temperature81–86 °F (27–30 °C)70–82 °F (21–28 °C)
pH4–77–8.5
Adult size2.0 in (5 cm)3.9 in (10 cm)
TemperamentPeacefulPeaceful
Swims inBottomTop
Minimum tank20 gal20 gal

Shared temperature: 81–82 °F (27–28 °C) · Shared pH: 7–7

Tips if you keep them together

See all german blue ram tank mates and molly tank mates, or add more species in the checker.

Data: Seriously Fish, FishBase, Seriously Fish, FishBase. Last reviewed 2026-11-04.

FAQ

Can German blue rams live with mollies?

Sometimes, with care. Very narrow shared temperature range: German blue ram 27–30 °C (81–86 °F) vs Molly 21–28 °C (70–82 °F).

What temperature for German blue rams and mollies?

German blue ram: 81–86 °F (27–30 °C). Molly: 70–82 °F (21–28 °C). Shared range: 81–82 °F (27–28 °C).

What size tank for German blue rams and mollies?

At least 20 US gallons, more as you add fish.

Note: Compatibility depends on individual temperament, tank size, decor and how fish are introduced. Our verdicts use conservative rules applied to published care data (see methodology). They are guidance, not a guarantee. Quarantine new fish and watch for chasing, torn fins or hiding.