Can assassin snails live with dwarf gouramis?

Verdict
Yes

Yes. Assassin snails and dwarf gouramis make a good pair. Both are fine at 75–80°F. Plan on at least 10 gal.

Assassin snailAssassin snail75–80°F · pH 7–8 Dwarf gouramiDwarf gourami72–82°F · pH 6–7.5

Why it works

Water side by side

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

Size to scale

Assassin snail · 1 inDwarf gourami · 3 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

Assassin snailDwarf gourami
Temperature75–80 °F72–82 °F
pH7–86–7.5
Adult size1.0 in3.0 in
Minimum tank5 gal10 gal
TemperamentPeacefulPeaceful
Swims atBottomTop
GroupAlone or in pairsAlone or in pairs
DietCarnivoreOmnivore

Better tank mates for assassin snails

All assassin snail tank mates

Better tank mates for dwarf gouramis

All dwarf gourami tank mates

Questions

Can assassin snails live with dwarf gouramis?

Yes. Assassin snails and dwarf gouramis make a good pair. Both are fine at 75–80°F. Plan on at least 10 gal.

What temperature suits both assassin snails and dwarf gouramis?

75–80 °F. Assassin snails need 75–80 °F, dwarf gouramis need 72–82 °F.

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

At least 10 gal, set by the dwarf gourami. Add space for each extra fish.