Can gold barbs live with endlers?

Verdict
Yes

Yes, gold barbs and endlers can live together. Both are fine at 72–75°F. Plan on at least 20 gal.

Gold barbGold barb64–75°F · pH 6–8 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: 72–75°Gold barb 64–75°Endler's livebearer 72–82°
The green band is the temperature range both can live in.
456789Both: 7–8Gold barb 6–8Endler's livebearer 7–8
The green band is the pH both tolerate.

Size to scale

Gold 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

Gold barbEndler's livebearer
Temperature64–75 °F72–82 °F
pH6–87–8
Adult size3.0 in1.0 in
Minimum tank20 gal5 gal
TemperamentPeacefulPeaceful
Swims atMiddleTop
GroupGroups of 6+Groups of 3+
DietOmnivoreOmnivore

Better tank mates for gold barbs

All gold barb tank mates

Better tank mates for endlers

All endler's livebearer tank mates

Questions

Can gold barbs live with endlers?

Yes, gold barbs and endlers can live together. Both are fine at 72–75°F. Plan on at least 20 gal.

What temperature suits both gold barbs and endlers?

72–75 °F. Gold barbs need 64–75 °F, endlers need 72–82 °F.

What size tank do gold barbs and endlers need together?

At least 20 gal, set by the gold barb. Add space for each extra fish.