Can gold barbs live with kissing gouramis?

Verdict
Yes

Yes. Gold barbs and kissing gouramis get along in the same tank. Both are fine at 72–75°F. Plan on at least 55 gal.

Gold barbGold barb64–75°F · pH 6–8 Kissing gouramiKissing gourami72–82°F · pH 6–8

Why it works

Water side by side

55°60°65°70°75°80°85°90°Both: 72–75°Gold barb 64–75°Kissing gourami 72–82°
The green band is the temperature range both can live in.
456789Both: 6–8Gold barb 6–8Kissing gourami 6–8
The green band is the pH both tolerate.

Size to scale

Gold 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

Gold barbKissing gourami
Temperature64–75 °F72–82 °F
pH6–86–8
Adult size3.0 in10.0 in
Minimum tank20 gal55 gal
TemperamentPeacefulSemi-aggressive
Swims atMiddleMiddle
GroupGroups of 6+Alone or in pairs
DietOmnivoreOmnivore

Better tank mates for gold barbs

All gold barb tank mates

Better tank mates for kissing gouramis

All kissing gourami tank mates

Questions

Can gold barbs live with kissing gouramis?

Yes. Gold barbs and kissing gouramis get along in the same tank. Both are fine at 72–75°F. Plan on at least 55 gal.

What temperature suits both gold barbs and kissing gouramis?

72–75 °F. Gold barbs need 64–75 °F, kissing gouramis need 72–82 °F.

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

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