Can kuhli loaches live with siamese algae eaters?

Verdict
Yes

Yes. Kuhli loaches and siamese algae eaters make a good pair. Both are fine at 75–79°F. Plan on at least 30 gal.

Kuhli loachKuhli loach75–86°F · pH 5.5–7 Siamese algae eaterSiamese algae eater75–79°F · pH 6.5–7.5

Why it works

Water side by side

55°60°65°70°75°80°85°90°Both: 75–79°Kuhli loach 75–86°Siamese algae eater 75–79°
The green band is the temperature range both can live in.
456789Both: 6.5–7Kuhli loach 5.5–7Siamese algae eater 6.5–7.5
The green band is the pH both tolerate.

Size to scale

Kuhli loach · 3.5 inSiamese algae eater · 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 loachSiamese algae eater
Temperature75–86 °F75–79 °F
pH5.5–76.5–7.5
Adult size3.5 in6.0 in
Minimum tank20 gal30 gal
TemperamentPeacefulPeaceful
Swims atBottomBottom
GroupGroups of 6+Alone or in pairs
DietOmnivoreHerbivore

Better tank mates for kuhli loaches

All kuhli loach tank mates

Better tank mates for siamese algae eaters

All siamese algae eater tank mates

Questions

Can kuhli loaches live with siamese algae eaters?

Yes. Kuhli loaches and siamese algae eaters make a good pair. Both are fine at 75–79°F. Plan on at least 30 gal.

What temperature suits both kuhli loaches and siamese algae eaters?

75–79 °F. Kuhli loaches need 75–86 °F, siamese algae eaters need 75–79 °F.

What size tank do kuhli loaches and siamese algae eaters need together?

At least 30 gal, set by the siamese algae eater. Add space for each extra fish.