Can pearl gouramis live with gold barbs?

Verdict
No

No. Pearl gouramis and gold barbs should not share a tank. No shared temperature. Pearl gouramis need 77–82°F, gold barbs need 64–75°F.

Pearl gouramiPearl gourami77–82°F · pH 6–7.5 Gold barbGold barb64–75°F · pH 6–8

What to watch

What works

Water side by side

55°60°65°70°75°80°85°90°Pearl gourami 77–82°Gold barb 64–75°
The ranges do not meet, so one of them would always be too warm or too cold.
456789Both: 6–7.5Pearl gourami 6–7.5Gold barb 6–8
The green band is the pH both tolerate.

Size to scale

Pearl 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

Pearl gouramiGold barb
Temperature77–82 °F64–75 °F
pH6–7.56–8
Adult size5.0 in3.0 in
Minimum tank30 gal20 gal
TemperamentPeacefulPeaceful
Swims atTopMiddle
GroupAlone or in pairsGroups of 6+
DietOmnivoreOmnivore

Better tank mates for pearl gouramis

All pearl gourami tank mates

Better tank mates for gold barbs

All gold barb tank mates

Questions

Can pearl gouramis live with gold barbs?

No. Pearl gouramis and gold barbs should not share a tank. No shared temperature. Pearl gouramis need 77–82°F, gold barbs need 64–75°F.

What temperature suits both pearl gouramis and gold barbs?

None. Pearl gouramis need 77–82 °F and gold barbs need 64–75 °F, so the ranges do not meet.

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

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