Can kuhli loaches live with tiger barbs?

Verdict
Yes

Yes, kuhli loaches and tiger barbs 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 Tiger barbTiger barb72–81°F · pH 6–7.5

Why it works

Water side by side

55°60°65°70°75°80°85°90°Both: 75–81°Kuhli loach 75–86°Tiger barb 72–81°
The green band is the temperature range both can live in.
456789Both: 6–7Kuhli loach 5.5–7Tiger barb 6–7.5
The green band is the pH both tolerate.

Size to scale

Kuhli loach · 3.5 inTiger barb · 3 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 loachTiger barb
Temperature75–86 °F72–81 °F
pH5.5–76–7.5
Adult size3.5 in3.0 in
Minimum tank20 gal30 gal
TemperamentPeacefulSemi-aggressive
Swims atBottomMiddle
GroupGroups of 6+Groups of 6+
DietOmnivoreOmnivore

Better tank mates for kuhli loaches

All kuhli loach tank mates

Better tank mates for tiger barbs

All tiger barb tank mates

Questions

Can kuhli loaches live with tiger barbs?

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

What temperature suits both kuhli loaches and tiger barbs?

75–81 °F. Kuhli loaches need 75–86 °F, tiger barbs need 72–81 °F.

What size tank do kuhli loaches and tiger barbs need together?

At least 30 gal, set by the tiger barb. Add space for each extra fish.