Can Blue Tang (Regal Tang) Live With Peacock Cichlid?
❌Not Compatible
Cannot coexist — Blue Tang (Regal Tang) is saltwater, Peacock Cichlid is freshwater.
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Parameter Comparison
| Parameter | Blue Tang (Regal Tang) | Peacock Cichlid | Overlap |
|---|---|---|---|
| Temperature | 75–82°F | 76–82°F | 76–82°F ✓ |
| pH Range | 8.1–8.4 | 7.8–8.6 | 8.1–8.4 ✓ |
| Temperament | semi-aggressive | semi-aggressive | Monitor ⚠ |
| Max Size | 12" | 6" | Similar ✓ |
| Min Tank Size | 75 gal | 55 gal | 75 gal minimum together |
| Diet | Omnivore | Omnivore | — |
| Care Level | intermediate | intermediate | — |
Species Profiles
Blue Tang (Regal Tang)
Paracanthurus hepatus
intermediatesemi-aggressive75+ gal
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 →Peacock Cichlid
Aulonocara spp.
intermediatesemi-aggressive55+ gal
The Peacock Cichlid (Aulonocara spp.) is a intermediate-level freshwater fish growing to 6 inches. Semi-aggressive temperament, minimum 55 gallon tank.
Full care guide →Other Compatible Tank Mates
For Blue Tang (Regal Tang):
For Peacock Cichlid:
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