Can mollies live with apistogramma?

Verdict
Yes, with care

Yes, with care. Mollies and apistogramma can share a tank, but watch one thing. Different water: mollies want pH 7.5–8.5, apistogramma want pH 5–7.

MollyMolly72–82°F · pH 7.5–8.5 ApistogrammaApistogramma75–84°F · pH 5–7

What to watch

What works

Water side by side

55°60°65°70°75°80°85°90°Both: 75–82°Molly 72–82°Apistogramma 75–84°
The green band is the temperature range both can live in.
456789Molly 7.5–8.5Apistogramma 5–7
No pH suits both. One would live in the wrong water all the time.

Size to scale

Molly · 4 inApistogramma · 3 in0"1"2"3"4"5"6"
Adult length in an aquarium. A fish can swallow anything that fits in its mouth, roughly a third to half its own length for predators.

Care at a glance

MollyApistogramma
Temperature72–82 °F75–84 °F
pH7.5–8.55–7
Adult size4.0 in3.0 in
Minimum tank20 gal20 gal
TemperamentPeacefulSemi-aggressive
Swims atTopBottom
GroupGroups of 3+Alone or in pairs
DietOmnivoreCarnivore

Better tank mates for mollies

All molly tank mates

Better tank mates for apistogramma

All apistogramma tank mates

Questions

Can mollies live with apistogramma?

Yes, with care. Mollies and apistogramma can share a tank, but watch one thing. Different water: mollies want pH 7.5–8.5, apistogramma want pH 5–7.

What temperature suits both mollies and apistogramma?

75–82 °F. Mollies need 72–82 °F, apistogramma need 75–84 °F.

What size tank do mollies and apistogramma need together?

At least 20 gal, set by the molly. Add space for each extra fish.