Can platies live with clown plecos?

Verdict
Yes

Yes. Platies and clown plecos get along in the same tank. Both are fine at 73–80°F. Plan on at least 20 gal.

PlatyPlaty70–80°F · pH 7–8.2 Clown plecoClown pleco73–82°F · pH 6.5–7.5

Why it works

Water side by side

55°60°65°70°75°80°85°90°Both: 73–80°Platy 70–80°Clown pleco 73–82°
The green band is the temperature range both can live in.
456789Both: 7–7.5Platy 7–8.2Clown pleco 6.5–7.5
The green band is the pH both tolerate.

Size to scale

Platy · 2.5 inClown pleco · 3.5 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

PlatyClown pleco
Temperature70–80 °F73–82 °F
pH7–8.26.5–7.5
Adult size2.5 in3.5 in
Minimum tank10 gal20 gal
TemperamentPeacefulPeaceful
Swims atMiddleBottom
GroupGroups of 3+Alone or in pairs
DietOmnivoreHerbivore

Better tank mates for platies

All platy tank mates

Better tank mates for clown plecos

All clown pleco tank mates

Questions

Can platies live with clown plecos?

Yes. Platies and clown plecos get along in the same tank. Both are fine at 73–80°F. Plan on at least 20 gal.

What temperature suits both platies and clown plecos?

73–80 °F. Platies need 70–80 °F, clown plecos need 73–82 °F.

What size tank do platies and clown plecos need together?

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