Can corydoras live with clown plecos?

Verdict
Yes

Yes. Corydoras and clown plecos make a good pair. Both are fine at 73–79°F. Plan on at least 20 gal.

CorydorasCorydoras72–79°F · pH 6–7.8 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: 73–79°Corydoras 72–79°Clown pleco 73–82°
The green band is the temperature range both can live in.
456789Both: 6.5–7.5Corydoras 6–7.8Clown pleco 6.5–7.5
The green band is the pH both tolerate.

Size to scale

Corydoras · 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

CorydorasClown pleco
Temperature72–79 °F73–82 °F
pH6–7.86.5–7.5
Adult size2.5 in3.5 in
Minimum tank20 gal20 gal
TemperamentPeacefulPeaceful
Swims atBottomBottom
GroupGroups of 6+Alone or in pairs
DietOmnivoreHerbivore

Better tank mates for corydoras

All corydoras tank mates

Better tank mates for clown plecos

All clown pleco tank mates

Questions

Can corydoras live with clown plecos?

Yes. Corydoras and clown plecos make a good pair. Both are fine at 73–79°F. Plan on at least 20 gal.

What temperature suits both corydoras and clown plecos?

73–79 °F. Corydoras need 72–79 °F, clown plecos need 73–82 °F.

What size tank do corydoras and clown plecos need together?

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