Can pearl gouramis live with glowlight tetras?

Verdict
Yes

Yes. Pearl gouramis and glowlight tetras make a good pair. Both are fine at 77–80°F. Plan on at least 30 gal.

Pearl gouramiPearl gourami77–82°F · pH 6–7.5 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: 77–80°Pearl gourami 77–82°Glowlight tetra 74–80°
The green band is the temperature range both can live in.
456789Both: 6–7.5Pearl gourami 6–7.5Glowlight tetra 6–7.5
The green band is the pH both tolerate.

Size to scale

Pearl 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

Pearl gouramiGlowlight tetra
Temperature77–82 °F74–80 °F
pH6–7.56–7.5
Adult size5.0 in1.5 in
Minimum tank30 gal10 gal
TemperamentPeacefulPeaceful
Swims atTopMiddle
GroupAlone or in pairsGroups of 6+
DietOmnivoreOmnivore

Better tank mates for pearl gouramis

All pearl gourami tank mates

Better tank mates for glowlight tetras

All glowlight tetra tank mates

Questions

Can pearl gouramis live with glowlight tetras?

Yes. Pearl gouramis and glowlight tetras make a good pair. Both are fine at 77–80°F. Plan on at least 30 gal.

What temperature suits both pearl gouramis and glowlight tetras?

77–80 °F. Pearl gouramis need 77–82 °F, glowlight tetras need 74–80 °F.

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

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