Can tiger barbs live with glass catfish?

Verdict
Yes

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

Tiger barbTiger barb72–81°F · pH 6–7.5 Glass catfishGlass catfish75–80°F · pH 6.5–7.5

Why it works

Water side by side

55°60°65°70°75°80°85°90°Both: 75–80°Tiger barb 72–81°Glass catfish 75–80°
The green band is the temperature range both can live in.
456789Both: 6.5–7.5Tiger barb 6–7.5Glass catfish 6.5–7.5
The green band is the pH both tolerate.

Size to scale

Tiger barb · 3 inGlass catfish · 3 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

Tiger barbGlass catfish
Temperature72–81 °F75–80 °F
pH6–7.56.5–7.5
Adult size3.0 in3.0 in
Minimum tank30 gal30 gal
TemperamentSemi-aggressivePeaceful
Swims atMiddleMiddle
GroupGroups of 6+Groups of 6+
DietOmnivoreCarnivore

Better tank mates for tiger barbs

All tiger barb tank mates

Better tank mates for glass catfish

All glass catfish tank mates

Questions

Can tiger barbs live with glass catfish?

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

What temperature suits both tiger barbs and glass catfish?

75–80 °F. Tiger barbs need 72–81 °F, glass catfish need 75–80 °F.

What size tank do tiger barbs and glass catfish need together?

At least 30 gal, set by the tiger barb. Add space for each extra fish.