Can blue gouramis live with gold barbs?

Verdict
Yes

Yes, blue gouramis and gold barbs can live together. Both are fine at 72–75°F. Plan on at least 30 gal.

Blue gouramiBlue gourami72–82°F · pH 6–8 Gold barbGold barb64–75°F · pH 6–8

Why it works

Water side by side

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

Size to scale

Blue gourami · 5 inGold barb · 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

Blue gouramiGold barb
Temperature72–82 °F64–75 °F
pH6–86–8
Adult size5.0 in3.0 in
Minimum tank30 gal20 gal
TemperamentSemi-aggressivePeaceful
Swims atTopMiddle
GroupAlone or in pairsGroups of 6+
DietOmnivoreOmnivore

Better tank mates for blue gouramis

All blue gourami tank mates

Better tank mates for gold barbs

All gold barb tank mates

Questions

Can blue gouramis live with gold barbs?

Yes, blue gouramis and gold barbs can live together. Both are fine at 72–75°F. Plan on at least 30 gal.

What temperature suits both blue gouramis and gold barbs?

72–75 °F. Blue gouramis need 72–82 °F, gold barbs need 64–75 °F.

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

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