Can Celestial Pearl Danio and Harlequin Rasbora live together?

Celestial Pearl Danio and Harlequin Rasbora 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

Celestial Pearl Danio vs Harlequin Rasbora

Celestial Pearl Danio

Celestichthys margaritatus

Harlequin Rasbora

Trigonostigma heteromorpha

Verdict:Not compatible

Side-by-side specs

Danios

Family

Rasboras

0.8″

Adult size

2″

10gal

Min tank

15gal

72–79°F

Temperature

72–81°F

6.5–7.5

6–7.5

peaceful

Temperament

peaceful

Schooling

mid

Water level

mid

Compatibility notes

criticalHarlequin Rasbora grows large enough (2") to eat Celestial Pearl Danio (0.8").

Try both in the builder →Compare different species