Can celestial pearl danios live with rummy nose tetras?

Verdict
Yes

Yes. Celestial pearl danios and rummy nose tetras make a good pair. Both are fine at 75–79°F. Plan on at least 20 gal.

Celestial pearl danioCelestial pearl danio72–79°F · pH 6.5–7.5 Rummy nose tetraRummy nose tetra75–84°F · pH 5.5–7

Why it works

Water side by side

55°60°65°70°75°80°85°90°Both: 75–79°Celestial pearl danio 72–79°Rummy nose tetra 75–84°
The green band is the temperature range both can live in.
456789Both: 6.5–7Celestial pearl danio 6.5–7.5Rummy nose tetra 5.5–7
The green band is the pH both tolerate.

Size to scale

Celestial pearl danio · 1 inRummy nose tetra · 2 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 danioRummy nose tetra
Temperature72–79 °F75–84 °F
pH6.5–7.55.5–7
Adult size1.0 in2.0 in
Minimum tank10 gal20 gal
TemperamentPeacefulPeaceful
Swims atMiddleMiddle
GroupGroups of 6+Groups of 6+
DietOmnivoreOmnivore

Better tank mates for celestial pearl danios

All celestial pearl danio tank mates

Better tank mates for rummy nose tetras

All rummy nose tetra tank mates

Questions

Can celestial pearl danios live with rummy nose tetras?

Yes. Celestial pearl danios and rummy nose tetras make a good pair. Both are fine at 75–79°F. Plan on at least 20 gal.

What temperature suits both celestial pearl danios and rummy nose tetras?

75–79 °F. Celestial pearl danios need 72–79 °F, rummy nose tetras need 75–84 °F.

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

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