Can kuhli loaches live with mollies?

Verdict

Yes, with care

Yes, with care. Kuhli loaches and mollies can share a tank, but watch one thing. Different water: kuhli loaches want pH 5.5–7, mollies want pH 7.5–8.5.

Kuhli loach75–86°F · pH 5.5–7

Molly72–82°F · pH 7.5–8.5

What to watch

Watch outDifferent water: kuhli loaches want pH 5.5–7, mollies want pH 7.5–8.5.

What works

Both are fine at 75–82°F.
They use different parts of the tank: kuhli loaches the bottom, mollies the top.

Water side by side

The green band is the temperature range both can live in.

No pH suits both. One would live in the wrong water all the time.

Size to scale

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 loach	Molly
Temperature	75–86 °F	72–82 °F
pH	5.5–7	7.5–8.5
Adult size	3.5 in	4.0 in
Minimum tank	20 gal	20 gal
Temperament	Peaceful	Peaceful
Swims at	Bottom	Top
Group	Groups of 6+	Groups of 3+
Diet	Omnivore	Omnivore

Better tank mates for kuhli loaches

All kuhli loach tank mates

Better tank mates for mollies

All molly tank mates

Questions

Can kuhli loaches live with mollies?

Yes, with care. Kuhli loaches and mollies can share a tank, but watch one thing. Different water: kuhli loaches want pH 5.5–7, mollies want pH 7.5–8.5.

What temperature suits both kuhli loaches and mollies?

75–82 °F. Kuhli loaches need 75–86 °F, mollies need 72–82 °F.

What size tank do kuhli loaches and mollies need together?

At least 20 gal, set by the kuhli loach. Add space for each extra fish.