Can neon tetras live with celestial pearl danios?

Verdict
Yes

Yes. Neon tetras and celestial pearl danios get along in the same tank. Both are fine at 72–79°F. Plan on at least 10 gal.

Neon tetraNeon tetra72–79°F · pH 6–7 Celestial pearl danioCelestial pearl danio72–79°F · pH 6.5–7.5

Why it works

Water side by side

55°60°65°70°75°80°85°90°Both: 72–79°Neon tetra 72–79°Celestial pearl danio 72–79°
The green band is the temperature range both can live in.
456789Both: 6.5–7Neon tetra 6–7Celestial pearl danio 6.5–7.5
The green band is the pH both tolerate.

Size to scale

Neon tetra · 1.5 inCelestial pearl danio · 1 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

Neon tetraCelestial pearl danio
Temperature72–79 °F72–79 °F
pH6–76.5–7.5
Adult size1.5 in1.0 in
Minimum tank10 gal10 gal
TemperamentPeacefulPeaceful
Swims atMiddleMiddle
GroupGroups of 6+Groups of 6+
DietOmnivoreOmnivore

Better tank mates for neon tetras

All neon tetra tank mates

Better tank mates for celestial pearl danios

All celestial pearl danio tank mates

Questions

Can neon tetras live with celestial pearl danios?

Yes. Neon tetras and celestial pearl danios get along in the same tank. Both are fine at 72–79°F. Plan on at least 10 gal.

What temperature suits both neon tetras and celestial pearl danios?

72–79 °F. Neon tetras need 72–79 °F, celestial pearl danios need 72–79 °F.

What size tank do neon tetras and celestial pearl danios need together?

At least 10 gal, set by the neon tetra. Add space for each extra fish.