Can kuhli loaches live with black skirt tetras?

Verdict
Yes

Yes. Kuhli loaches and black skirt tetras make a good pair. Both are fine at 75–80°F. Plan on at least 20 gal.

Kuhli loachKuhli loach75–86°F · pH 5.5–7 Black skirt tetraBlack skirt tetra70–80°F · pH 6–7.5

Why it works

Water side by side

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

Size to scale

Kuhli loach · 3.5 inBlack skirt tetra · 2.5 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 loachBlack skirt tetra
Temperature75–86 °F70–80 °F
pH5.5–76–7.5
Adult size3.5 in2.5 in
Minimum tank20 gal15 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 black skirt tetras

All black skirt tetra tank mates

Questions

Can kuhli loaches live with black skirt tetras?

Yes. Kuhli loaches and black skirt tetras make a good pair. Both are fine at 75–80°F. Plan on at least 20 gal.

What temperature suits both kuhli loaches and black skirt tetras?

75–80 °F. Kuhli loaches need 75–86 °F, black skirt tetras need 70–80 °F.

What size tank do kuhli loaches and black skirt tetras need together?

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