Can corydoras live with blue gouramis?

Verdict
Yes

Yes. Corydoras and blue gouramis get along in the same tank. Both are fine at 72–79°F. Plan on at least 30 gal.

CorydorasCorydoras72–79°F · pH 6–7.8 Blue gouramiBlue gourami72–82°F · pH 6–8

Why it works

Water side by side

55°60°65°70°75°80°85°90°Both: 72–79°Corydoras 72–79°Blue gourami 72–82°
The green band is the temperature range both can live in.
456789Both: 6–7.8Corydoras 6–7.8Blue gourami 6–8
The green band is the pH both tolerate.

Size to scale

Corydoras · 2.5 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

CorydorasBlue gourami
Temperature72–79 °F72–82 °F
pH6–7.86–8
Adult size2.5 in5.0 in
Minimum tank20 gal30 gal
TemperamentPeacefulSemi-aggressive
Swims atBottomTop
GroupGroups of 6+Alone or in pairs
DietOmnivoreOmnivore

Better tank mates for corydoras

All corydoras tank mates

Better tank mates for blue gouramis

All blue gourami tank mates

Questions

Can corydoras live with blue gouramis?

Yes. Corydoras and blue gouramis get along in the same tank. Both are fine at 72–79°F. Plan on at least 30 gal.

What temperature suits both corydoras and blue gouramis?

72–79 °F. Corydoras need 72–79 °F, blue gouramis need 72–82 °F.

What size tank do corydoras and blue gouramis need together?

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