Can zebra danios live with black neon tetras?

Verdict
Yes

Yes. Zebra danios and black neon tetras get along in the same tank. Both are fine at 73–77°F. Plan on at least 15 gal.

Zebra danioZebra danio65–77°F · pH 6.5–8 Black neon tetraBlack neon tetra73–81°F · pH 5.5–7.5

Why it works

Water side by side

55°60°65°70°75°80°85°90°Both: 73–77°Zebra danio 65–77°Black neon tetra 73–81°
The green band is the temperature range both can live in.
456789Both: 6.5–7.5Zebra danio 6.5–8Black neon tetra 5.5–7.5
The green band is the pH both tolerate.

Size to scale

Zebra danio · 2 inBlack neon tetra · 1.5 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

Zebra danioBlack neon tetra
Temperature65–77 °F73–81 °F
pH6.5–85.5–7.5
Adult size2.0 in1.5 in
Minimum tank10 gal15 gal
TemperamentPeacefulPeaceful
Swims atTopMiddle
GroupGroups of 6+Groups of 6+
DietOmnivoreOmnivore

Better tank mates for zebra danios

All zebra danio tank mates

Better tank mates for black neon tetras

All black neon tetra tank mates

Questions

Can zebra danios live with black neon tetras?

Yes. Zebra danios and black neon tetras get along in the same tank. Both are fine at 73–77°F. Plan on at least 15 gal.

What temperature suits both zebra danios and black neon tetras?

73–77 °F. Zebra danios need 65–77 °F, black neon tetras need 73–81 °F.

What size tank do zebra danios and black neon tetras need together?

At least 15 gal, set by the black neon tetra. Add space for each extra fish.