Can glass catfish live with blue gouramis?

Verdict
Yes

Yes. Glass catfish and blue gouramis get along in the same tank. Both are fine at 75–80°F. Plan on at least 30 gal.

Glass catfishGlass catfish75–80°F · pH 6.5–7.5 Blue gouramiBlue gourami72–82°F · pH 6–8

Why it works

Water side by side

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

Size to scale

Glass catfish · 3 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

Glass catfishBlue gourami
Temperature75–80 °F72–82 °F
pH6.5–7.56–8
Adult size3.0 in5.0 in
Minimum tank30 gal30 gal
TemperamentPeacefulSemi-aggressive
Swims atMiddleTop
GroupGroups of 6+Alone or in pairs
DietCarnivoreOmnivore

Better tank mates for glass catfish

All glass catfish tank mates

Better tank mates for blue gouramis

All blue gourami tank mates

Questions

Can glass catfish live with blue gouramis?

Yes. Glass catfish and blue gouramis get along in the same tank. Both are fine at 75–80°F. Plan on at least 30 gal.

What temperature suits both glass catfish and blue gouramis?

75–80 °F. Glass catfish need 75–80 °F, blue gouramis need 72–82 °F.

What size tank do glass catfish and blue gouramis need together?

At least 30 gal, set by the glass catfish. Add space for each extra fish.