Common name: Bluespine unicornfish

General information

The Bluespine Unicornfish, scientifically known as Naso unicornis, is a distinctive member of the Acanthuridae family, renowned for its prominent rostral horn which is more pronounced in adults. This horn has given rise to the common name 'unicornfish'. They are a large species, capable of reaching up to 70 cm in length, and are characterized by their striking blue accents on the tail and dorsal fin.

Care

Naso Tangs require large aquariums due to their size and active swimming behavior. They are herbivores, and their diet should consist of marine algae, seaweed, and vegetable-based foods to maintain their health and coloration. They are generally peaceful but can become territorial, especially towards conspecifics or similar-looking species.

Reproduction

In the wild, Naso unicornis forms large aggregations during spawning. Reproduction in the home aquarium is rare, but understanding their natural breeding behaviors can be beneficial for maintaining a harmonious environment.

Habitat

Bluespine Unicornfish are found in clear, current-swept terraces of lagoon and seaward reefs. They prefer depths ranging from 1 to 30 meters. Geographically, they are distributed across the Indo-Pacific region, from East Africa to the Hawaiian, Marquesan, and Ducie islands, north to southern Japan, and south to Lord Howe and Rapa Islands.