Can clown plecos live with endlers?

Verdict
Yes

Yes. Clown plecos and endlers get along in the same tank. Both are fine at 73–82°F. Plan on at least 20 gal.

Clown plecoClown pleco73–82°F · pH 6.5–7.5 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: 73–82°Clown pleco 73–82°Endler's livebearer 72–82°
The green band is the temperature range both can live in.
456789Both: 7–7.5Clown pleco 6.5–7.5Endler's livebearer 7–8
The green band is the pH both tolerate.

Size to scale

Clown pleco · 3.5 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

Clown plecoEndler's livebearer
Temperature73–82 °F72–82 °F
pH6.5–7.57–8
Adult size3.5 in1.0 in
Minimum tank20 gal5 gal
TemperamentPeacefulPeaceful
Swims atBottomTop
GroupAlone or in pairsGroups of 3+
DietHerbivoreOmnivore

Better tank mates for clown plecos

All clown pleco tank mates

Better tank mates for endlers

All endler's livebearer tank mates

Questions

Can clown plecos live with endlers?

Yes. Clown plecos and endlers get along in the same tank. Both are fine at 73–82°F. Plan on at least 20 gal.

What temperature suits both clown plecos and endlers?

73–82 °F. Clown plecos need 73–82 °F, endlers need 72–82 °F.

What size tank do clown plecos and endlers need together?

At least 20 gal, set by the clown pleco. Add space for each extra fish.