Can upside down catfish live with ramshorn snails?

Verdict
Yes

Yes, upside down catfish and ramshorn snails can live together. Both are fine at 72–79°F. Plan on at least 30 gal.

Upside down catfishUpside down catfish72–79°F · pH 6–7.5 Ramshorn snailRamshorn snail70–80°F · pH 7–8

Why it works

Water side by side

55°60°65°70°75°80°85°90°Both: 72–79°Upside down catfish 72–79°Ramshorn snail 70–80°
The green band is the temperature range both can live in.
456789Both: 7–7.5Upside down catfish 6–7.5Ramshorn snail 7–8
The green band is the pH both tolerate.

Size to scale

Upside down catfish · 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

Upside down catfishRamshorn snail
Temperature72–79 °F70–80 °F
pH6–7.57–8
Adult size4.0 in1.0 in
Minimum tank30 gal5 gal
TemperamentPeacefulPeaceful
Swims atBottomBottom
GroupGroups of 3+Alone or in pairs
DietOmnivoreOmnivore

Better tank mates for upside down catfish

All upside down catfish tank mates

Better tank mates for ramshorn snails

All ramshorn snail tank mates

Questions

Can upside down catfish live with ramshorn snails?

Yes, upside down catfish and ramshorn snails can live together. Both are fine at 72–79°F. Plan on at least 30 gal.

What temperature suits both upside down catfish and ramshorn snails?

72–79 °F. Upside down catfish need 72–79 °F, ramshorn snails need 70–80 °F.

What size tank do upside down catfish and ramshorn snails need together?

At least 30 gal, set by the upside down catfish. Add space for each extra fish.