Can kuhli loaches live with bristlenose plecos?

Verdict
Yes

Yes, kuhli loaches and bristlenose plecos can live together. Both are fine at 75–81°F. Plan on at least 30 gal.

Kuhli loachKuhli loach75–86°F · pH 5.5–7 Bristlenose plecoBristlenose pleco73–81°F · pH 6.5–7.5

Why it works

Water side by side

55°60°65°70°75°80°85°90°Both: 75–81°Kuhli loach 75–86°Bristlenose pleco 73–81°
The green band is the temperature range both can live in.
456789Both: 6.5–7Kuhli loach 5.5–7Bristlenose pleco 6.5–7.5
The green band is the pH both tolerate.

Size to scale

Kuhli loach · 3.5 inBristlenose pleco · 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

Kuhli loachBristlenose pleco
Temperature75–86 °F73–81 °F
pH5.5–76.5–7.5
Adult size3.5 in5.0 in
Minimum tank20 gal30 gal
TemperamentPeacefulPeaceful
Swims atBottomBottom
GroupGroups of 6+Alone or in pairs
DietOmnivoreHerbivore

Better tank mates for kuhli loaches

All kuhli loach tank mates

Better tank mates for bristlenose plecos

All bristlenose pleco tank mates

Questions

Can kuhli loaches live with bristlenose plecos?

Yes, kuhli loaches and bristlenose plecos can live together. Both are fine at 75–81°F. Plan on at least 30 gal.

What temperature suits both kuhli loaches and bristlenose plecos?

75–81 °F. Kuhli loaches need 75–86 °F, bristlenose plecos need 73–81 °F.

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

At least 30 gal, set by the bristlenose pleco. Add space for each extra fish.