Can tiger barbs live with kissing gouramis?

Verdict
Yes

Yes. Tiger barbs and kissing gouramis make a good pair. Both are fine at 72–81°F. Plan on at least 55 gal.

Tiger barbTiger barb72–81°F · pH 6–7.5 Kissing gouramiKissing gourami72–82°F · pH 6–8

Why it works

Water side by side

55°60°65°70°75°80°85°90°Both: 72–81°Tiger barb 72–81°Kissing gourami 72–82°
The green band is the temperature range both can live in.
456789Both: 6–7.5Tiger barb 6–7.5Kissing gourami 6–8
The green band is the pH both tolerate.

Size to scale

Tiger barb · 3 inKissing gourami · 10 in0"2"4"6"8"10"
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 barbKissing gourami
Temperature72–81 °F72–82 °F
pH6–7.56–8
Adult size3.0 in10.0 in
Minimum tank30 gal55 gal
TemperamentSemi-aggressiveSemi-aggressive
Swims atMiddleMiddle
GroupGroups of 6+Alone or in pairs
DietOmnivoreOmnivore

Better tank mates for tiger barbs

All tiger barb tank mates

Better tank mates for kissing gouramis

All kissing gourami tank mates

Questions

Can tiger barbs live with kissing gouramis?

Yes. Tiger barbs and kissing gouramis make a good pair. Both are fine at 72–81°F. Plan on at least 55 gal.

What temperature suits both tiger barbs and kissing gouramis?

72–81 °F. Tiger barbs need 72–81 °F, kissing gouramis need 72–82 °F.

What size tank do tiger barbs and kissing gouramis need together?

At least 55 gal, set by the kissing gourami. Add space for each extra fish.