Can odessa barbs live with dwarf neon rainbowfish?

Verdict
Yes

Yes. Odessa barbs and dwarf neon rainbowfish make a good pair. Both are fine at 75–79°F. Plan on at least 30 gal.

Odessa barbOdessa barb70–79°F · pH 6–7.5 Dwarf neon rainbowfishDwarf neon rainbowfish75–82°F · pH 6.5–7.5

Why it works

Water side by side

55°60°65°70°75°80°85°90°Both: 75–79°Odessa barb 70–79°Dwarf neon rainbowfish 75–82°
The green band is the temperature range both can live in.
456789Both: 6.5–7.5Odessa barb 6–7.5Dwarf neon rainbowfish 6.5–7.5
The green band is the pH both tolerate.

Size to scale

Odessa barb · 3 inDwarf neon rainbowfish · 2.5 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 barbDwarf neon rainbowfish
Temperature70–79 °F75–82 °F
pH6–7.56.5–7.5
Adult size3.0 in2.5 in
Minimum tank30 gal20 gal
TemperamentPeacefulPeaceful
Swims atMiddleMiddle
GroupGroups of 6+Groups of 6+
DietOmnivoreOmnivore

Better tank mates for odessa barbs

All odessa barb tank mates

Better tank mates for dwarf neon rainbowfish

All dwarf neon rainbowfish tank mates

Questions

Can odessa barbs live with dwarf neon rainbowfish?

Yes. Odessa barbs and dwarf neon rainbowfish make a good pair. Both are fine at 75–79°F. Plan on at least 30 gal.

What temperature suits both odessa barbs and dwarf neon rainbowfish?

75–79 °F. Odessa barbs need 70–79 °F, dwarf neon rainbowfish need 75–82 °F.

What size tank do odessa barbs and dwarf neon rainbowfish need together?

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