Can blue gouramis live with glowlight tetras?

Verdict
Yes

Yes. Blue gouramis and glowlight tetras get along in the same tank. Both are fine at 74–80°F. Plan on at least 30 gal.

Blue gouramiBlue gourami72–82°F · pH 6–8 Glowlight tetraGlowlight tetra74–80°F · pH 6–7.5

Why it works

Water side by side

55°60°65°70°75°80°85°90°Both: 74–80°Blue gourami 72–82°Glowlight tetra 74–80°
The green band is the temperature range both can live in.
456789Both: 6–7.5Blue gourami 6–8Glowlight tetra 6–7.5
The green band is the pH both tolerate.

Size to scale

Blue gourami · 5 inGlowlight tetra · 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

Blue gouramiGlowlight tetra
Temperature72–82 °F74–80 °F
pH6–86–7.5
Adult size5.0 in1.5 in
Minimum tank30 gal10 gal
TemperamentSemi-aggressivePeaceful
Swims atTopMiddle
GroupAlone or in pairsGroups of 6+
DietOmnivoreOmnivore

Better tank mates for blue gouramis

All blue gourami tank mates

Better tank mates for glowlight tetras

All glowlight tetra tank mates

Questions

Can blue gouramis live with glowlight tetras?

Yes. Blue gouramis and glowlight tetras get along in the same tank. Both are fine at 74–80°F. Plan on at least 30 gal.

What temperature suits both blue gouramis and glowlight tetras?

74–80 °F. Blue gouramis need 72–82 °F, glowlight tetras need 74–80 °F.

What size tank do blue gouramis and glowlight tetras need together?

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