Can clown plecos live with dojo loaches?

Verdict
Yes

Yes, clown plecos and dojo loaches can live together. Both are fine at 73–77°F. Plan on at least 55 gal.

Clown plecoClown pleco73–82°F · pH 6.5–7.5 Dojo loachDojo loach59–77°F · pH 6.5–8

Why it works

Water side by side

55°60°65°70°75°80°85°90°Both: 73–77°Clown pleco 73–82°Dojo loach 59–77°
The green band is the temperature range both can live in.
456789Both: 6.5–7.5Clown pleco 6.5–7.5Dojo loach 6.5–8
The green band is the pH both tolerate.

Size to scale

Clown pleco · 3.5 inDojo loach · 6 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 plecoDojo loach
Temperature73–82 °F59–77 °F
pH6.5–7.56.5–8
Adult size3.5 in6.0 in
Minimum tank20 gal55 gal
TemperamentPeacefulPeaceful
Swims atBottomBottom
GroupAlone or in pairsGroups of 3+
DietHerbivoreOmnivore

Better tank mates for clown plecos

All clown pleco tank mates

Better tank mates for dojo loaches

All dojo loach tank mates

Questions

Can clown plecos live with dojo loaches?

Yes, clown plecos and dojo loaches can live together. Both are fine at 73–77°F. Plan on at least 55 gal.

What temperature suits both clown plecos and dojo loaches?

73–77 °F. Clown plecos need 73–82 °F, dojo loaches need 59–77 °F.

What size tank do clown plecos and dojo loaches need together?

At least 55 gal, set by the dojo loach. Add space for each extra fish.