Can sparkling gouramis live with assassin snails?

Verdict
Yes

Yes. Sparkling gouramis and assassin snails get along in the same tank. Both are fine at 75–80°F. Plan on at least 5 gal.

Sparkling gouramiSparkling gourami72–82°F · pH 6–7.5 Assassin snailAssassin snail75–80°F · pH 7–8

Why it works

Water side by side

55°60°65°70°75°80°85°90°Both: 75–80°Sparkling gourami 72–82°Assassin snail 75–80°
The green band is the temperature range both can live in.
456789Both: 7–7.5Sparkling gourami 6–7.5Assassin snail 7–8
The green band is the pH both tolerate.

Size to scale

Sparkling gourami · 1.5 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

Sparkling gouramiAssassin snail
Temperature72–82 °F75–80 °F
pH6–7.57–8
Adult size1.5 in1.0 in
Minimum tank5 gal5 gal
TemperamentPeacefulPeaceful
Swims atTopBottom
GroupGroups of 4+Alone or in pairs
DietOmnivoreCarnivore

Better tank mates for sparkling gouramis

All sparkling gourami tank mates

Better tank mates for assassin snails

All assassin snail tank mates

Questions

Can sparkling gouramis live with assassin snails?

Yes. Sparkling gouramis and assassin snails get along in the same tank. Both are fine at 75–80°F. Plan on at least 5 gal.

What temperature suits both sparkling gouramis and assassin snails?

75–80 °F. Sparkling gouramis need 72–82 °F, assassin snails need 75–80 °F.

What size tank do sparkling gouramis and assassin snails need together?

At least 5 gal, set by the sparkling gourami. Add space for each extra fish.