Can bristlenose plecos live with dojo loaches?

Verdict
Yes

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

Bristlenose plecoBristlenose pleco73–81°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°Bristlenose pleco 73–81°Dojo loach 59–77°
The green band is the temperature range both can live in.
456789Both: 6.5–7.5Bristlenose pleco 6.5–7.5Dojo loach 6.5–8
The green band is the pH both tolerate.

Size to scale

Bristlenose pleco · 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

Bristlenose plecoDojo loach
Temperature73–81 °F59–77 °F
pH6.5–7.56.5–8
Adult size5.0 in6.0 in
Minimum tank30 gal55 gal
TemperamentPeacefulPeaceful
Swims atBottomBottom
GroupAlone or in pairsGroups of 3+
DietHerbivoreOmnivore

Better tank mates for bristlenose plecos

All bristlenose pleco tank mates

Better tank mates for dojo loaches

All dojo loach tank mates

Questions

Can bristlenose plecos live with dojo loaches?

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

What temperature suits both bristlenose plecos and dojo loaches?

73–77 °F. Bristlenose plecos need 73–81 °F, dojo loaches need 59–77 °F.

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

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