Blue Tang (Paracanthurus hepatus) Care Guide:
The Blue Tang, also known as the Regal Tang or Hippo Tang, is a vibrant saltwater fish famous for its bright blue body and yellow tail. Native to the Indo-Pacific reefs, it requires a spacious, well-established marine aquarium of at least 100 gallons due to its active swimming nature and potential adult size of 12 inches. Ideal water conditions include a temperature of 75–82°F (24–28°C), pH 8.1–8.4, and specific gravity of 1.020–1.025. Blue Tangs are omnivorous, feeding primarily on algae, supplemented with high-quality marine flakes, pellets, and occasional meaty foods like brine shrimp or mysis shrimp. They are generally peaceful but can be territorial toward conspecifics, especially in smaller tanks. Providing plenty of live rock for grazing, hiding spots, and stable water conditions is crucial to prevent stress and maintain their vibrant coloration.
| Aspect | Details |
|---|---|
| Scientific Name | Paracanthurus hepatus |
| Common Name | Blue Tang / Regal Tang / Hippo Tang |
| Origin | Indo-Pacific reefs |
| Size | Up to 12 inches (30 cm) |
| Tank Size | Minimum 100 gallons |
| Temperature | 75–82°F (24–28°C) |
| pH | 8.1–8.4 |
| Salinity | 1.020–1.025 specific gravity |
| Diet | Omnivorous – primarily algae, flakes, pellets, brine/mysis shrimp |
| Temperament | Peaceful but can be territorial |
| Tank Setup | Plentiful live rock, hiding spaces, open swimming areas |
| Lifespan | 8–15 years |
| Compatibility | Peaceful marine community fish, avoid small, delicate species |