Can Blue Tang (Regal Tang) Live With Celestial Pearl Danio?
Incompatible pH. Blue Tang (Regal Tang) needs 8.1–8.4, Celestial Pearl Danio needs 6.5–7.5.
Parameter Comparison
| Parameter | Blue Tang (Regal Tang) | Celestial Pearl Danio | Overlap |
|---|---|---|---|
| Temperature | 75–82°F | 72–78°F | 75–78°F ✓ |
| pH Range | 8.1–8.4 | 6.5–7.5 | No overlap ✗ |
| Temperament | semi-aggressive | peaceful | Monitor ⚠ |
| Max Size | 12" | 1" | Size mismatch ✗ |
| Min Tank Size | 75 gal | 10 gal | 75 gal minimum together |
| Diet | Omnivore | Omnivore | — |
| Care Level | intermediate | beginner | — |
Species Profiles
Blue Tang (Regal Tang)
Paracanthurus hepatus
The blue tang — Dory from Finding Nemo — is one of the most recognizable marine fish with its vivid royal blue body, black palette marking, and yellow tail. While stunning, they grow large (up to 12 inches), are highly susceptible to ich, and need tanks of 75+ gallons. They are not beginner fish despite their popularity following the movies.
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 →