Can odessa barbs live with rosy barbs?

Verdict
Yes

Yes. Odessa barbs and rosy barbs make a good pair. Both are fine at 70–77°F. Plan on at least 30 gal.

Odessa barbOdessa barb70–79°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: 70–77°Odessa barb 70–79°Rosy barb 64–77°
The green band is the temperature range both can live in.
456789Both: 6–7.5Odessa barb 6–7.5Rosy barb 6–7.5
The green band is the pH both tolerate.

Size to scale

Odessa barb · 3 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

Odessa barbRosy barb
Temperature70–79 °F64–77 °F
pH6–7.56–7.5
Adult size3.0 in4.0 in
Minimum tank30 gal30 gal
TemperamentPeacefulSemi-aggressive
Swims atMiddleMiddle
GroupGroups of 6+Groups of 6+
DietOmnivoreOmnivore

Better tank mates for odessa barbs

All odessa barb tank mates

Better tank mates for rosy barbs

All rosy barb tank mates

Questions

Can odessa barbs live with rosy barbs?

Yes. Odessa barbs and rosy barbs make a good pair. Both are fine at 70–77°F. Plan on at least 30 gal.

What temperature suits both odessa barbs and rosy barbs?

70–77 °F. Odessa barbs need 70–79 °F, rosy barbs need 64–77 °F.

What size tank do odessa barbs and rosy barbs need together?

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