Can kuhli loaches live with serpae tetras?

Verdict
Yes

Yes, kuhli loaches and serpae tetras can live together. Both are fine at 75–79°F. Plan on at least 20 gal.

Kuhli loachKuhli loach75–86°F · pH 5.5–7 Serpae tetraSerpae tetra72–79°F · pH 6–7.5

Why it works

Water side by side

55°60°65°70°75°80°85°90°Both: 75–79°Kuhli loach 75–86°Serpae tetra 72–79°
The green band is the temperature range both can live in.
456789Both: 6–7Kuhli loach 5.5–7Serpae tetra 6–7.5
The green band is the pH both tolerate.

Size to scale

Kuhli loach · 3.5 inSerpae tetra · 1.75 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 loachSerpae tetra
Temperature75–86 °F72–79 °F
pH5.5–76–7.5
Adult size3.5 in1.75 in
Minimum tank20 gal20 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 serpae tetras

All serpae tetra tank mates

Questions

Can kuhli loaches live with serpae tetras?

Yes, kuhli loaches and serpae tetras can live together. Both are fine at 75–79°F. Plan on at least 20 gal.

What temperature suits both kuhli loaches and serpae tetras?

75–79 °F. Kuhli loaches need 75–86 °F, serpae tetras need 72–79 °F.

What size tank do kuhli loaches and serpae tetras need together?

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