Can Harlequin Rasbora Live With Celestial Pearl Danio?
Harlequin Rasbora and Celestial Pearl Danio are compatible. Temperature overlap 73–78°F. Both peaceful.
Conditions: Minimum 20 gallon tank.
Parameter Comparison
| Parameter | Harlequin Rasbora | Celestial Pearl Danio | Overlap |
|---|---|---|---|
| Temperature | 73–82°F | 72–78°F | 73–78°F ✓ |
| pH Range | 6–7.5 | 6.5–7.5 | 6.5–7.5 ✓ |
| Temperament | peaceful | peaceful | Both peaceful ✓ |
| Max Size | 2" | 1" | Similar ✓ |
| Min Tank Size | 10 gal | 10 gal | 20 gal minimum together |
| Diet | Omnivore | Omnivore | — |
| Care Level | beginner | beginner | — |
Tank Requirements for Harlequin Rasbora + Celestial Pearl Danio
To keep Harlequin Rasbora and Celestial Pearl Danio together, you need at minimum a 20 gallon tank. Harlequin Rasbora should be kept in a school of 6+. Celestial Pearl Danio should be kept in a school of 8+. Provide adequate filtration, stable temperature with a heater, and hiding spots to reduce stress.
Species Profiles
Harlequin Rasbora
Trigonostigma heteromorpha
Harlequin rasboras are elegant, copper-colored schooling fish with a distinctive black triangular patch on their body. They are one of the most peaceful and hardy community fish available, making them ideal for beginners. In schools of 8+, they display beautiful coordinated swimming behavior.
Full care guide →Celestial Pearl Danio
Danio margaritatus
Celestial pearl danios (also called galaxy rasboras) are tiny, jewel-like fish discovered in Myanmar in 2006. Their dark blue body is covered in iridescent pearl-white spots, with bright orange-red fins striped with black. Despite their exotic appearance, they are hardy and easy to care for — one of the hobby's best-kept secrets for nano tanks.
Full care guide →