Can serpae tetras live with zebra loaches?

Verdict
Yes

Yes. Serpae tetras and zebra loaches make a good pair. Both are fine at 73–79°F. Plan on at least 30 gal.

Serpae tetraSerpae tetra72–79°F · pH 6–7.5 Zebra loachZebra loach73–79°F · pH 6–7.5

Why it works

Water side by side

55°60°65°70°75°80°85°90°Both: 73–79°Serpae tetra 72–79°Zebra loach 73–79°
The green band is the temperature range both can live in.
456789Both: 6–7.5Serpae tetra 6–7.5Zebra loach 6–7.5
The green band is the pH both tolerate.

Size to scale

Serpae tetra · 1.75 inZebra loach · 3.5 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

Serpae tetraZebra loach
Temperature72–79 °F73–79 °F
pH6–7.56–7.5
Adult size1.75 in3.5 in
Minimum tank20 gal30 gal
TemperamentSemi-aggressivePeaceful
Swims atMiddleBottom
GroupGroups of 6+Groups of 5+
DietOmnivoreOmnivore

Better tank mates for serpae tetras

All serpae tetra tank mates

Better tank mates for zebra loaches

All zebra loach tank mates

Questions

Can serpae tetras live with zebra loaches?

Yes. Serpae tetras and zebra loaches make a good pair. Both are fine at 73–79°F. Plan on at least 30 gal.

What temperature suits both serpae tetras and zebra loaches?

73–79 °F. Serpae tetras need 72–79 °F, zebra loaches need 73–79 °F.

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

At least 30 gal, set by the zebra loach. Add space for each extra fish.