Can kuhli loaches live with yellow labs?

Verdict
No

No. Kuhli loaches and yellow labs should not share a tank. Different water: kuhli loaches want pH 5.5–7, yellow labs want pH 7.8–8.6.

What to watch

What works

Water side by side

55°60°65°70°75°80°85°90°Both: 75–82°Kuhli loach 75–86°Electric yellow cichlid 75–82°
The green band is the temperature range both can live in.
456789Kuhli loach 5.5–7Electric yellow cichlid 7.8–8.6
No pH suits both. One would live in the wrong water all the time.

Size to scale

Kuhli loach · 3.5 inElectric yellow cichlid · 4 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 loachElectric yellow cichlid
Temperature75–86 °F75–82 °F
pH5.5–77.8–8.6
Adult size3.5 in4.0 in
Minimum tank20 gal40 gal
TemperamentPeacefulSemi-aggressive
Swims atBottomAll levels
GroupGroups of 6+Groups of 4+
DietOmnivoreOmnivore

Better tank mates for kuhli loaches

All kuhli loach tank mates

Better tank mates for yellow labs

All electric yellow cichlid tank mates

Questions

Can kuhli loaches live with yellow labs?

No. Kuhli loaches and yellow labs should not share a tank. Different water: kuhli loaches want pH 5.5–7, yellow labs want pH 7.8–8.6.

What temperature suits both kuhli loaches and yellow labs?

75–82 °F. Kuhli loaches need 75–86 °F, yellow labs need 75–82 °F.

What size tank do kuhli loaches and yellow labs need together?

At least 40 gal, set by the electric yellow cichlid. Add space for each extra fish.