Can pearl gouramis live with cherry barbs?

Verdict
Yes

Yes. Pearl gouramis and cherry barbs make a good pair. Both are fine at 77–81°F. Plan on at least 30 gal.

Pearl gouramiPearl gourami77–82°F · pH 6–7.5 Cherry barbCherry barb73–81°F · pH 6–7.5

Why it works

Water side by side

55°60°65°70°75°80°85°90°Both: 77–81°Pearl gourami 77–82°Cherry barb 73–81°
The green band is the temperature range both can live in.
456789Both: 6–7.5Pearl gourami 6–7.5Cherry barb 6–7.5
The green band is the pH both tolerate.

Size to scale

Pearl gourami · 5 inCherry barb · 2 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 gouramiCherry barb
Temperature77–82 °F73–81 °F
pH6–7.56–7.5
Adult size5.0 in2.0 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 cherry barbs

All cherry barb tank mates

Questions

Can pearl gouramis live with cherry barbs?

Yes. Pearl gouramis and cherry barbs make a good pair. Both are fine at 77–81°F. Plan on at least 30 gal.

What temperature suits both pearl gouramis and cherry barbs?

77–81 °F. Pearl gouramis need 77–82 °F, cherry barbs need 73–81 °F.

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

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