Can crayfish live with ramshorn snails?

Verdict
No

No. Crayfish and ramshorn snails should not share a tank. Crayfish hunt snails, so ramshorn snails will be eaten.

CrayfishCrayfish65–77°F · pH 6.5–8 Ramshorn snailRamshorn snail70–80°F · pH 7–8

What to watch

What works

Water side by side

55°60°65°70°75°80°85°90°Both: 70–77°Crayfish 65–77°Ramshorn snail 70–80°
The green band is the temperature range both can live in.
456789Both: 7–8Crayfish 6.5–8Ramshorn snail 7–8
The green band is the pH both tolerate.

Size to scale

Crayfish · 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

CrayfishRamshorn snail
Temperature65–77 °F70–80 °F
pH6.5–87–8
Adult size5.0 in1.0 in
Minimum tank20 gal5 gal
TemperamentAggressivePeaceful
Swims atBottomBottom
GroupOne per tankAlone or in pairs
DietOmnivoreOmnivore

Better tank mates for crayfish

All crayfish tank mates

Better tank mates for ramshorn snails

All ramshorn snail tank mates

Questions

Can crayfish live with ramshorn snails?

No. Crayfish and ramshorn snails should not share a tank. Crayfish hunt snails, so ramshorn snails will be eaten.

What temperature suits both crayfish and ramshorn snails?

70–77 °F. Crayfish need 65–77 °F, ramshorn snails need 70–80 °F.

What size tank do crayfish and ramshorn snails need together?

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