Can kuhli loaches live with rainbow sharks?

Verdict
Yes, with care

Yes, with care. Kuhli loaches and rainbow sharks can share a tank, but watch one thing. Rainbow sharks chase other bottom fish out of their patch.

Kuhli loachKuhli loach75–86°F · pH 5.5–7 Rainbow sharkRainbow shark72–80°F · pH 6.5–7.5

What to watch

What works

Water side by side

55°60°65°70°75°80°85°90°Both: 75–80°Kuhli loach 75–86°Rainbow shark 72–80°
The green band is the temperature range both can live in.
456789Both: 6.5–7Kuhli loach 5.5–7Rainbow shark 6.5–7.5
The green band is the pH both tolerate.

Size to scale

Kuhli loach · 3.5 inRainbow shark · 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

Kuhli loachRainbow shark
Temperature75–86 °F72–80 °F
pH5.5–76.5–7.5
Adult size3.5 in6.0 in
Minimum tank20 gal55 gal
TemperamentPeacefulSemi-aggressive
Swims atBottomBottom
GroupGroups of 6+One per tank
DietOmnivoreOmnivore

Better tank mates for kuhli loaches

All kuhli loach tank mates

Better tank mates for rainbow sharks

All rainbow shark tank mates

Questions

Can kuhli loaches live with rainbow sharks?

Yes, with care. Kuhli loaches and rainbow sharks can share a tank, but watch one thing. Rainbow sharks chase other bottom fish out of their patch.

What temperature suits both kuhli loaches and rainbow sharks?

75–80 °F. Kuhli loaches need 75–86 °F, rainbow sharks need 72–80 °F.

What size tank do kuhli loaches and rainbow sharks need together?

At least 55 gal, set by the rainbow shark. Add space for each extra fish.