Can corydoras live with clown loaches?

Verdict
Yes

Yes. Corydoras and clown loaches make a good pair. Both are fine at 77–79°F. Plan on at least 75 gal.

CorydorasCorydoras72–79°F · pH 6–7.8 Clown loachClown loach77–86°F · pH 6–7.5

Why it works

Water side by side

55°60°65°70°75°80°85°90°Both: 77–79°Corydoras 72–79°Clown loach 77–86°
The green band is the temperature range both can live in.
456789Both: 6–7.5Corydoras 6–7.8Clown loach 6–7.5
The green band is the pH both tolerate.

Size to scale

Corydoras · 2.5 inClown loach · 8 in0"1"2"3"4"5"6"7"8"
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 loach
Temperature72–79 °F77–86 °F
pH6–7.86–7.5
Adult size2.5 in8.0 in
Minimum tank20 gal75 gal
TemperamentPeacefulPeaceful
Swims atBottomBottom
GroupGroups of 6+Groups of 5+
DietOmnivoreOmnivore

Better tank mates for corydoras

All corydoras tank mates

Better tank mates for clown loaches

All clown loach tank mates

Questions

Can corydoras live with clown loaches?

Yes. Corydoras and clown loaches make a good pair. Both are fine at 77–79°F. Plan on at least 75 gal.

What temperature suits both corydoras and clown loaches?

77–79 °F. Corydoras need 72–79 °F, clown loaches need 77–86 °F.

What size tank do corydoras and clown loaches need together?

At least 75 gal, set by the clown loach. Add space for each extra fish.