Can crayfish live with odessa barbs?

Verdict
Yes

Yes. Crayfish and odessa barbs get along in the same tank. Both are fine at 70–77°F. Plan on at least 30 gal.

CrayfishCrayfish65–77°F · pH 6.5–8 Odessa barbOdessa barb70–79°F · pH 6–7.5

Why it works

Water side by side

55°60°65°70°75°80°85°90°Both: 70–77°Crayfish 65–77°Odessa barb 70–79°
The green band is the temperature range both can live in.
456789Both: 6.5–7.5Crayfish 6.5–8Odessa barb 6–7.5
The green band is the pH both tolerate.

Size to scale

Crayfish · 5 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

CrayfishOdessa barb
Temperature65–77 °F70–79 °F
pH6.5–86–7.5
Adult size5.0 in3.0 in
Minimum tank20 gal30 gal
TemperamentAggressivePeaceful
Swims atBottomMiddle
GroupOne per tankGroups of 6+
DietOmnivoreOmnivore

Better tank mates for crayfish

All crayfish tank mates

Better tank mates for odessa barbs

All odessa barb tank mates

Questions

Can crayfish live with odessa barbs?

Yes. Crayfish and odessa barbs get along in the same tank. Both are fine at 70–77°F. Plan on at least 30 gal.

What temperature suits both crayfish and odessa barbs?

70–77 °F. Crayfish need 65–77 °F, odessa barbs need 70–79 °F.

What size tank do crayfish and odessa barbs need together?

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