Can sparkling gouramis live with rosy barbs?

Verdict
Yes

Yes, sparkling gouramis and rosy barbs can live together. Both are fine at 72–77°F. Plan on at least 30 gal.

Sparkling gouramiSparkling gourami72–82°F · pH 6–7.5 Rosy barbRosy barb64–77°F · pH 6–7.5

Why it works

Water side by side

55°60°65°70°75°80°85°90°Both: 72–77°Sparkling gourami 72–82°Rosy barb 64–77°
The green band is the temperature range both can live in.
456789Both: 6–7.5Sparkling gourami 6–7.5Rosy barb 6–7.5
The green band is the pH both tolerate.

Size to scale

Sparkling gourami · 1.5 inRosy barb · 4 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

Sparkling gouramiRosy barb
Temperature72–82 °F64–77 °F
pH6–7.56–7.5
Adult size1.5 in4.0 in
Minimum tank5 gal30 gal
TemperamentPeacefulSemi-aggressive
Swims atTopMiddle
GroupGroups of 4+Groups of 6+
DietOmnivoreOmnivore

Better tank mates for sparkling gouramis

All sparkling gourami tank mates

Better tank mates for rosy barbs

All rosy barb tank mates

Questions

Can sparkling gouramis live with rosy barbs?

Yes, sparkling gouramis and rosy barbs can live together. Both are fine at 72–77°F. Plan on at least 30 gal.

What temperature suits both sparkling gouramis and rosy barbs?

72–77 °F. Sparkling gouramis need 72–82 °F, rosy barbs need 64–77 °F.

What size tank do sparkling gouramis and rosy barbs need together?

At least 30 gal, set by the rosy barb. Add space for each extra fish.