Common name: Blue Tang

General Information

The Blue Tang, scientifically known as Paracanthurus hepatus, is a vibrant and visually striking species that has captured the hearts of aquarium enthusiasts around the world. Known for its brilliant blue coloration, accented by a yellow tail and a unique black 'palette' design on its body, this species is a favorite in both public aquariums and home setups. Its popularity soared after being featured as "Dory" in the animated movies Finding Nemo and Finding Dory.

In the aquarium trade, the Blue Tang is highly valued not only for its stunning appearance but also for its role in educating the public about marine ecosystems and conservation. It is commonly found in reef tanks, where its active swimming and social nature add dynamic interest to the environment.

Care

Blue Tangs require a spacious tank with plenty of swimming room and live rock for grazing and hiding. They are best suited for aquarists with some experience, as they need stable water conditions and a well-maintained environment to thrive.

Diet and Feeding

In the wild, Blue Tangs are primarily herbivores, feeding on algae. In captivity, they should be offered a varied diet that includes marine algae, spirulina, and high-quality herbivore pellets. Occasional treats of mysis shrimp or other protein sources can be provided, but the emphasis should be on plant-based nutrition.

Feed them small amounts several times a day to mimic their natural grazing behavior and prevent overeating, which can lead to digestive issues.

Behavior and Compatibility

Blue Tangs are generally peaceful but can be somewhat territorial, especially in smaller tanks. They are best kept with other peaceful species and can coexist with a variety of reef-safe fish and invertebrates. However, they may show aggression towards other tangs or similarly shaped fish, particularly in confined spaces.

Reproduction

Breeding Blue Tangs in captivity is challenging and not commonly achieved by hobbyists. They are pelagic spawners, releasing eggs and sperm into the water column. Successful breeding typically requires large, specialized setups and precise water conditions.

Health and Common Issues

Blue Tangs are prone to marine ich and other skin parasites, particularly when stressed or if water quality is poor. Quarantining new arrivals and maintaining excellent water quality are key preventive measures. They can live for up to 20 years in well-maintained aquariums.

Habitat

Blue Tangs are native to the Indo-Pacific region, inhabiting coral reefs and lagoons. They are found in areas ranging from East Africa to Japan, including the Great Barrier Reef and the islands of the Pacific Ocean. They prefer warm, shallow waters with abundant coral and rock formations.