Can gold barbs live with dwarf gouramis?

Verdict
Yes

Yes, gold barbs and dwarf gouramis can live together. Both are fine at 72–75°F. Plan on at least 20 gal.

Gold barbGold barb64–75°F · pH 6–8 Dwarf gouramiDwarf gourami72–82°F · pH 6–7.5

Why it works

Water side by side

55°60°65°70°75°80°85°90°Both: 72–75°Gold barb 64–75°Dwarf gourami 72–82°
The green band is the temperature range both can live in.
456789Both: 6–7.5Gold barb 6–8Dwarf gourami 6–7.5
The green band is the pH both tolerate.

Size to scale

Gold barb · 3 inDwarf gourami · 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

Gold barbDwarf gourami
Temperature64–75 °F72–82 °F
pH6–86–7.5
Adult size3.0 in3.0 in
Minimum tank20 gal10 gal
TemperamentPeacefulPeaceful
Swims atMiddleTop
GroupGroups of 6+Alone or in pairs
DietOmnivoreOmnivore

Better tank mates for gold barbs

All gold barb tank mates

Better tank mates for dwarf gouramis

All dwarf gourami tank mates

Questions

Can gold barbs live with dwarf gouramis?

Yes, gold barbs and dwarf gouramis can live together. Both are fine at 72–75°F. Plan on at least 20 gal.

What temperature suits both gold barbs and dwarf gouramis?

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

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

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