Can celestial pearl danios live with killifish?

Verdict
Yes

Yes. Celestial pearl danios and killifish get along in the same tank. Both are fine at 72–77°F. Plan on at least 10 gal.

Celestial pearl danioCelestial pearl danio72–79°F · pH 6.5–7.5 KillifishKillifish70–77°F · pH 5.5–7

Why it works

Water side by side

55°60°65°70°75°80°85°90°Both: 72–77°Celestial pearl danio 72–79°Killifish 70–77°
The green band is the temperature range both can live in.
456789Both: 6.5–7Celestial pearl danio 6.5–7.5Killifish 5.5–7
The green band is the pH both tolerate.

Size to scale

Celestial pearl danio · 1 inKillifish · 2.5 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

Celestial pearl danioKillifish
Temperature72–79 °F70–77 °F
pH6.5–7.55.5–7
Adult size1.0 in2.5 in
Minimum tank10 gal10 gal
TemperamentPeacefulPeaceful
Swims atMiddleTop
GroupGroups of 6+Alone or in pairs
DietOmnivoreCarnivore

Better tank mates for celestial pearl danios

All celestial pearl danio tank mates

Better tank mates for killifish

All killifish tank mates

Questions

Can celestial pearl danios live with killifish?

Yes. Celestial pearl danios and killifish get along in the same tank. Both are fine at 72–77°F. Plan on at least 10 gal.

What temperature suits both celestial pearl danios and killifish?

72–77 °F. Celestial pearl danios need 72–79 °F, killifish need 70–77 °F.

What size tank do celestial pearl danios and killifish need together?

At least 10 gal, set by the celestial pearl danio. Add space for each extra fish.