Can swordtails live with odessa barbs?

Verdict
Yes

Yes, swordtails and odessa barbs can live together. Both are fine at 72–79°F. Plan on at least 30 gal.

SwordtailSwordtail72–79°F · pH 7–8.3 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: 72–79°Swordtail 72–79°Odessa barb 70–79°
The green band is the temperature range both can live in.
456789Both: 7–7.5Swordtail 7–8.3Odessa barb 6–7.5
The green band is the pH both tolerate.

Size to scale

Swordtail · 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

SwordtailOdessa barb
Temperature72–79 °F70–79 °F
pH7–8.36–7.5
Adult size5.0 in3.0 in
Minimum tank30 gal30 gal
TemperamentSemi-aggressivePeaceful
Swims atMiddleMiddle
GroupGroups of 3+Groups of 6+
DietOmnivoreOmnivore

Better tank mates for swordtails

All swordtail tank mates

Better tank mates for odessa barbs

All odessa barb tank mates

Questions

Can swordtails live with odessa barbs?

Yes, swordtails and odessa barbs can live together. Both are fine at 72–79°F. Plan on at least 30 gal.

What temperature suits both swordtails and odessa barbs?

72–79 °F. Swordtails need 72–79 °F, odessa barbs need 70–79 °F.

What size tank do swordtails and odessa barbs need together?

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