Can paradise fish live with assassin snails?

Verdict
Yes

Yes. Paradise fish and assassin snails get along in the same tank. Both are fine at 75–79°F. Plan on at least 20 gal.

Paradise fishParadise fish61–79°F · pH 6–8 Assassin snailAssassin snail75–80°F · pH 7–8

Why it works

Water side by side

55°60°65°70°75°80°85°90°Both: 75–79°Paradise fish 61–79°Assassin snail 75–80°
The green band is the temperature range both can live in.
456789Both: 7–8Paradise fish 6–8Assassin snail 7–8
The green band is the pH both tolerate.

Size to scale

Paradise fish · 3.5 inAssassin 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

Paradise fishAssassin snail
Temperature61–79 °F75–80 °F
pH6–87–8
Adult size3.5 in1.0 in
Minimum tank20 gal5 gal
TemperamentSemi-aggressivePeaceful
Swims atTopBottom
GroupOne per tankAlone or in pairs
DietOmnivoreCarnivore

Better tank mates for paradise fish

All paradise fish tank mates

Better tank mates for assassin snails

All assassin snail tank mates

Questions

Can paradise fish live with assassin snails?

Yes. Paradise fish and assassin snails get along in the same tank. Both are fine at 75–79°F. Plan on at least 20 gal.

What temperature suits both paradise fish and assassin snails?

75–79 °F. Paradise fish need 61–79 °F, assassin snails need 75–80 °F.

What size tank do paradise fish and assassin snails need together?

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