Can Male Betta and Celestial Pearl Danio live together?

Male Betta and Celestial Pearl Danio are not compatible. The comparison on this page runs the same compatibility engine as the tank builder, checking temperature and pH overlap, predation by size, temperament, and known hard-pair conflicts.

Species Comparison

Male Betta vs Celestial Pearl Danio

Male Betta

Betta splendens

Celestial Pearl Danio

Celestichthys margaritatus

Verdict:Not compatible

Side-by-side specs

Anabantoids

Family

Danios

2.5″

Adult size

0.8″

5gal

Min tank

10gal

76–82°F

Temperature

72–79°F

6.5–7.5

semi-aggressive

Temperament

peaceful

Solitary

Schooling

top

Water level

mid

Compatibility notes

warnMale Betta and Celestial Pearl Danio only narrowly overlap in temperature — keep within 76–79°F.
criticalMale Betta grows large enough (2.5") to eat Celestial Pearl Danio (0.8").

Try both in the builder →Compare different species