Can mystery snails live with blue gouramis?

Verdict
Yes

Yes. Mystery snails and blue gouramis get along in the same tank. Both are fine at 72–82°F. Plan on at least 30 gal.

Why it works

Water side by side

55°60°65°70°75°80°85°90°Both: 72–82°Mystery snail 68–82°Blue gourami 72–82°
The green band is the temperature range both can live in.
456789Both: 7–8Mystery snail 7–8Blue gourami 6–8
The green band is the pH both tolerate.

Size to scale

Mystery snail · 2 inBlue gourami · 5 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

Mystery snailBlue gourami
Temperature68–82 °F72–82 °F
pH7–86–8
Adult size2.0 in5.0 in
Minimum tank5 gal30 gal
TemperamentPeacefulSemi-aggressive
Swims atBottomTop
GroupAlone or in pairsAlone or in pairs
DietOmnivoreOmnivore

Better tank mates for mystery snails

All mystery snail tank mates

Better tank mates for blue gouramis

All blue gourami tank mates

Questions

Can mystery snails live with blue gouramis?

Yes. Mystery snails and blue gouramis get along in the same tank. Both are fine at 72–82°F. Plan on at least 30 gal.

What temperature suits both mystery snails and blue gouramis?

72–82 °F. Mystery snails need 68–82 °F, blue gouramis need 72–82 °F.

What size tank do mystery snails and blue gouramis need together?

At least 30 gal, set by the blue gourami. Add space for each extra fish.