Can crayfish live with sparkling gouramis?

Verdict
Yes

Yes, crayfish and sparkling gouramis can live together. Both are fine at 72–77°F. Plan on at least 20 gal.

CrayfishCrayfish65–77°F · pH 6.5–8 Sparkling gouramiSparkling gourami72–82°F · pH 6–7.5

Why it works

Water side by side

55°60°65°70°75°80°85°90°Both: 72–77°Crayfish 65–77°Sparkling gourami 72–82°
The green band is the temperature range both can live in.
456789Both: 6.5–7.5Crayfish 6.5–8Sparkling gourami 6–7.5
The green band is the pH both tolerate.

Size to scale

Crayfish · 5 inSparkling gourami · 1.5 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

CrayfishSparkling gourami
Temperature65–77 °F72–82 °F
pH6.5–86–7.5
Adult size5.0 in1.5 in
Minimum tank20 gal5 gal
TemperamentAggressivePeaceful
Swims atBottomTop
GroupOne per tankGroups of 4+
DietOmnivoreOmnivore

Better tank mates for crayfish

All crayfish tank mates

Better tank mates for sparkling gouramis

All sparkling gourami tank mates

Questions

Can crayfish live with sparkling gouramis?

Yes, crayfish and sparkling gouramis can live together. Both are fine at 72–77°F. Plan on at least 20 gal.

What temperature suits both crayfish and sparkling gouramis?

72–77 °F. Crayfish need 65–77 °F, sparkling gouramis need 72–82 °F.

What size tank do crayfish and sparkling gouramis need together?

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