Can bettas live with celestial pearl danios?

Verdict
Yes

Yes, bettas and celestial pearl danios can live together. Both are fine at 76–79°F. Plan on at least 10 gal.

BettaBetta76–82°F · pH 6.5–7.5 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: 76–79°Betta 76–82°Celestial pearl danio 72–79°
The green band is the temperature range both can live in.
456789Both: 6.5–7.5Betta 6.5–7.5Celestial pearl danio 6.5–7.5
The green band is the pH both tolerate.

Size to scale

Betta · 2.5 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

BettaCelestial pearl danio
Temperature76–82 °F72–79 °F
pH6.5–7.56.5–7.5
Adult size2.5 in1.0 in
Minimum tank5 gal10 gal
TemperamentSemi-aggressivePeaceful
Swims atTopMiddle
GroupOne per tankGroups of 6+
DietCarnivoreOmnivore

Better tank mates for bettas

All betta tank mates

Better tank mates for celestial pearl danios

All celestial pearl danio tank mates

Questions

Can bettas live with celestial pearl danios?

Yes, bettas and celestial pearl danios can live together. Both are fine at 76–79°F. Plan on at least 10 gal.

What temperature suits both bettas and celestial pearl danios?

76–79 °F. Bettas need 76–82 °F, celestial pearl danios need 72–79 °F.

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

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