Can Serpae Tetra Live With Blue Tang (Regal Tang)?
Incompatible pH. Serpae Tetra needs 5.5–7.5, Blue Tang (Regal Tang) needs 8.1–8.4.
Parameter Comparison
| Parameter | Serpae Tetra | Blue Tang (Regal Tang) | Overlap |
|---|---|---|---|
| Temperature | 72–82°F | 75–82°F | 75–82°F ✓ |
| pH Range | 5.5–7.5 | 8.1–8.4 | No overlap ✗ |
| Temperament | semi-aggressive | semi-aggressive | Monitor ⚠ |
| Max Size | 1.75" | 12" | Size mismatch ✗ |
| Min Tank Size | 20 gal | 75 gal | 75 gal minimum together |
| Diet | Omnivore | Omnivore | — |
| Care Level | beginner | intermediate | — |
Species Profiles
Serpae Tetra
Hyphessobrycon eques
Serpae tetras are vibrant blood-red schooling fish with a distinctive black comma-shaped marking behind the gill plate. While beautiful, they have a reputation as fin nippers — especially in small groups. Keeping them in schools of 8+ in a spacious tank significantly reduces this behavior. They add bold color to community tanks when kept properly.
Full care guide →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 →