Can tiger barbs live with endlers?

Verdict
Yes

Yes, tiger barbs and endlers can live together. Both are fine at 72–81°F. Plan on at least 30 gal.

Tiger barbTiger barb72–81°F · pH 6–7.5 Endler's livebearerEndler's livebearer72–82°F · pH 7–8

Why it works

Water side by side

55°60°65°70°75°80°85°90°Both: 72–81°Tiger barb 72–81°Endler's livebearer 72–82°
The green band is the temperature range both can live in.
456789Both: 7–7.5Tiger barb 6–7.5Endler's livebearer 7–8
The green band is the pH both tolerate.

Size to scale

Tiger barb · 3 inEndler's livebearer · 1 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

Tiger barbEndler's livebearer
Temperature72–81 °F72–82 °F
pH6–7.57–8
Adult size3.0 in1.0 in
Minimum tank30 gal5 gal
TemperamentSemi-aggressivePeaceful
Swims atMiddleTop
GroupGroups of 6+Groups of 3+
DietOmnivoreOmnivore

Better tank mates for tiger barbs

All tiger barb tank mates

Better tank mates for endlers

All endler's livebearer tank mates

Questions

Can tiger barbs live with endlers?

Yes, tiger barbs and endlers can live together. Both are fine at 72–81°F. Plan on at least 30 gal.

What temperature suits both tiger barbs and endlers?

72–81 °F. Tiger barbs need 72–81 °F, endlers need 72–82 °F.

What size tank do tiger barbs and endlers need together?

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