Can kuhli loaches live with zebra loaches?

Verdict
Yes

Yes. Kuhli loaches and zebra loaches get along in the same tank. Both are fine at 75–79°F. Plan on at least 30 gal.

Kuhli loachKuhli loach75–86°F · pH 5.5–7 Zebra loachZebra loach73–79°F · pH 6–7.5

Why it works

Water side by side

55°60°65°70°75°80°85°90°Both: 75–79°Kuhli loach 75–86°Zebra loach 73–79°
The green band is the temperature range both can live in.
456789Both: 6–7Kuhli loach 5.5–7Zebra loach 6–7.5
The green band is the pH both tolerate.

Size to scale

Kuhli loach · 3.5 inZebra loach · 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

Kuhli loachZebra loach
Temperature75–86 °F73–79 °F
pH5.5–76–7.5
Adult size3.5 in3.5 in
Minimum tank20 gal30 gal
TemperamentPeacefulPeaceful
Swims atBottomBottom
GroupGroups of 6+Groups of 5+
DietOmnivoreOmnivore

Better tank mates for kuhli loaches

All kuhli loach tank mates

Better tank mates for zebra loaches

All zebra loach tank mates

Questions

Can kuhli loaches live with zebra loaches?

Yes. Kuhli loaches and zebra loaches get along in the same tank. Both are fine at 75–79°F. Plan on at least 30 gal.

What temperature suits both kuhli loaches and zebra loaches?

75–79 °F. Kuhli loaches need 75–86 °F, zebra loaches need 73–79 °F.

What size tank do kuhli loaches and zebra loaches need together?

At least 30 gal, set by the zebra loach. Add space for each extra fish.