Can zebra danios live with serpae tetras?

Verdict
Yes

Yes. Zebra danios and serpae tetras get along in the same tank. Both are fine at 72–77°F. Plan on at least 20 gal.

Zebra danioZebra danio65–77°F · pH 6.5–8 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: 72–77°Zebra danio 65–77°Serpae tetra 72–79°
The green band is the temperature range both can live in.
456789Both: 6.5–7.5Zebra danio 6.5–8Serpae tetra 6–7.5
The green band is the pH both tolerate.

Size to scale

Zebra danio · 2 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

Zebra danioSerpae tetra
Temperature65–77 °F72–79 °F
pH6.5–86–7.5
Adult size2.0 in1.75 in
Minimum tank10 gal20 gal
TemperamentPeacefulSemi-aggressive
Swims atTopMiddle
GroupGroups of 6+Groups of 6+
DietOmnivoreOmnivore

Better tank mates for zebra danios

All zebra danio tank mates

Better tank mates for serpae tetras

All serpae tetra tank mates

Questions

Can zebra danios live with serpae tetras?

Yes. Zebra danios and serpae tetras get along in the same tank. Both are fine at 72–77°F. Plan on at least 20 gal.

What temperature suits both zebra danios and serpae tetras?

72–77 °F. Zebra danios need 65–77 °F, serpae tetras need 72–79 °F.

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

At least 20 gal, set by the serpae tetra. Add space for each extra fish.