Can odessa barbs live with electric blue acaras?

Verdict
Yes

Yes. Odessa barbs and electric blue acaras get along in the same tank. Both are fine at 72–79°F. Plan on at least 30 gal.

Odessa barbOdessa barb70–79°F · pH 6–7.5 Electric blue acaraElectric blue acara72–82°F · pH 6.5–7.5

Why it works

Water side by side

55°60°65°70°75°80°85°90°Both: 72–79°Odessa barb 70–79°Electric blue acara 72–82°
The green band is the temperature range both can live in.
456789Both: 6.5–7.5Odessa barb 6–7.5Electric blue acara 6.5–7.5
The green band is the pH both tolerate.

Size to scale

Odessa barb · 3 inElectric blue acara · 6 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 barbElectric blue acara
Temperature70–79 °F72–82 °F
pH6–7.56.5–7.5
Adult size3.0 in6.0 in
Minimum tank30 gal30 gal
TemperamentPeacefulSemi-aggressive
Swims atMiddleMiddle
GroupGroups of 6+Alone or in pairs
DietOmnivoreOmnivore

Better tank mates for odessa barbs

All odessa barb tank mates

Better tank mates for electric blue acaras

All electric blue acara tank mates

Questions

Can odessa barbs live with electric blue acaras?

Yes. Odessa barbs and electric blue acaras get along in the same tank. Both are fine at 72–79°F. Plan on at least 30 gal.

What temperature suits both odessa barbs and electric blue acaras?

72–79 °F. Odessa barbs need 70–79 °F, electric blue acaras need 72–82 °F.

What size tank do odessa barbs and electric blue acaras need together?

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