Can corydoras live with ramshorn snails?

Verdict
Yes

Yes. Corydoras and ramshorn snails get along in the same tank. Both are fine at 72–79°F. Plan on at least 20 gal.

CorydorasCorydoras72–79°F · pH 6–7.8 Ramshorn snailRamshorn snail70–80°F · pH 7–8

Why it works

Water side by side

55°60°65°70°75°80°85°90°Both: 72–79°Corydoras 72–79°Ramshorn snail 70–80°
The green band is the temperature range both can live in.
456789Both: 7–7.8Corydoras 6–7.8Ramshorn snail 7–8
The green band is the pH both tolerate.

Size to scale

Corydoras · 2.5 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

CorydorasRamshorn snail
Temperature72–79 °F70–80 °F
pH6–7.87–8
Adult size2.5 in1.0 in
Minimum tank20 gal5 gal
TemperamentPeacefulPeaceful
Swims atBottomBottom
GroupGroups of 6+Alone or in pairs
DietOmnivoreOmnivore

Better tank mates for corydoras

All corydoras tank mates

Better tank mates for ramshorn snails

All ramshorn snail tank mates

Questions

Can corydoras live with ramshorn snails?

Yes. Corydoras and ramshorn snails get along in the same tank. Both are fine at 72–79°F. Plan on at least 20 gal.

What temperature suits both corydoras and ramshorn snails?

72–79 °F. Corydoras need 72–79 °F, ramshorn snails need 70–80 °F.

What size tank do corydoras and ramshorn snails need together?

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