Can ember tetras live with odessa barbs?

Verdict
Yes

Yes, ember tetras and odessa barbs can live together. Both are fine at 73–79°F. Plan on at least 30 gal.

Why it works

Water side by side

55°60°65°70°75°80°85°90°Both: 73–79°Ember tetra 73–84°Odessa barb 70–79°
The green band is the temperature range both can live in.
456789Both: 6–7Ember tetra 5.5–7Odessa barb 6–7.5
The green band is the pH both tolerate.

Size to scale

Ember tetra · 0.8 inOdessa barb · 3 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

Ember tetraOdessa barb
Temperature73–84 °F70–79 °F
pH5.5–76–7.5
Adult size0.8 in3.0 in
Minimum tank5 gal30 gal
TemperamentPeacefulPeaceful
Swims atMiddleMiddle
GroupGroups of 6+Groups of 6+
DietOmnivoreOmnivore

Better tank mates for ember tetras

All ember tetra tank mates

Better tank mates for odessa barbs

All odessa barb tank mates

Questions

Can ember tetras live with odessa barbs?

Yes, ember tetras and odessa barbs can live together. Both are fine at 73–79°F. Plan on at least 30 gal.

What temperature suits both ember tetras and odessa barbs?

73–79 °F. Ember tetras need 73–84 °F, odessa barbs need 70–79 °F.

What size tank do ember tetras and odessa barbs need together?

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