Can paradise fish live with rosy barbs?

Verdict
Yes

Yes, paradise fish and rosy barbs can live together. Both are fine at 64–77°F. Plan on at least 30 gal.

Paradise fishParadise fish61–79°F · pH 6–8 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: 64–77°Paradise fish 61–79°Rosy barb 64–77°
The green band is the temperature range both can live in.
456789Both: 6–7.5Paradise fish 6–8Rosy barb 6–7.5
The green band is the pH both tolerate.

Size to scale

Paradise fish · 3.5 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

Paradise fishRosy barb
Temperature61–79 °F64–77 °F
pH6–86–7.5
Adult size3.5 in4.0 in
Minimum tank20 gal30 gal
TemperamentSemi-aggressiveSemi-aggressive
Swims atTopMiddle
GroupOne per tankGroups of 6+
DietOmnivoreOmnivore

Better tank mates for paradise fish

All paradise fish tank mates

Better tank mates for rosy barbs

All rosy barb tank mates

Questions

Can paradise fish live with rosy barbs?

Yes, paradise fish and rosy barbs can live together. Both are fine at 64–77°F. Plan on at least 30 gal.

What temperature suits both paradise fish and rosy barbs?

64–77 °F. Paradise fish need 61–79 °F, rosy barbs need 64–77 °F.

What size tank do paradise fish and rosy barbs need together?

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