Can mollies live with ramshorn snails?

Verdict
Yes

Yes. Mollies and ramshorn snails make a good pair. Both are fine at 72–80°F. Plan on at least 20 gal.

MollyMolly72–82°F · pH 7.5–8.5 Ramshorn snailRamshorn snail70–80°F · pH 7–8

Why it works

Water side by side

55°60°65°70°75°80°85°90°Both: 72–80°Molly 72–82°Ramshorn snail 70–80°
The green band is the temperature range both can live in.
456789Both: 7.5–8Molly 7.5–8.5Ramshorn snail 7–8
The green band is the pH both tolerate.

Size to scale

Molly · 4 inRamshorn snail · 1 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

MollyRamshorn snail
Temperature72–82 °F70–80 °F
pH7.5–8.57–8
Adult size4.0 in1.0 in
Minimum tank20 gal5 gal
TemperamentPeacefulPeaceful
Swims atTopBottom
GroupGroups of 3+Alone or in pairs
DietOmnivoreOmnivore

Better tank mates for mollies

All molly tank mates

Better tank mates for ramshorn snails

All ramshorn snail tank mates

Questions

Can mollies live with ramshorn snails?

Yes. Mollies and ramshorn snails make a good pair. Both are fine at 72–80°F. Plan on at least 20 gal.

What temperature suits both mollies and ramshorn snails?

72–80 °F. Mollies need 72–82 °F, ramshorn snails need 70–80 °F.

What size tank do mollies and ramshorn snails need together?

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