Can cherry barbs live with glowlight tetras?

Verdict
Yes

Yes. Cherry barbs and glowlight tetras make a good pair. Both are fine at 74–80°F. Plan on at least 20 gal.

Cherry barbCherry barb73–81°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: 74–80°Cherry barb 73–81°Glowlight tetra 74–80°
The green band is the temperature range both can live in.
456789Both: 6–7.5Cherry barb 6–7.5Glowlight tetra 6–7.5
The green band is the pH both tolerate.

Size to scale

Cherry barb · 2 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

Cherry barbGlowlight tetra
Temperature73–81 °F74–80 °F
pH6–7.56–7.5
Adult size2.0 in1.5 in
Minimum tank20 gal10 gal
TemperamentPeacefulPeaceful
Swims atMiddleMiddle
GroupGroups of 6+Groups of 6+
DietOmnivoreOmnivore

Better tank mates for cherry barbs

All cherry barb tank mates

Better tank mates for glowlight tetras

All glowlight tetra tank mates

Questions

Can cherry barbs live with glowlight tetras?

Yes. Cherry barbs and glowlight tetras make a good pair. Both are fine at 74–80°F. Plan on at least 20 gal.

What temperature suits both cherry barbs and glowlight tetras?

74–80 °F. Cherry barbs need 73–81 °F, glowlight tetras need 74–80 °F.

What size tank do cherry barbs and glowlight tetras need together?

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