Spotted Unicornfish

The Spotted Unicornfish is a large and distinctive member of the Naso genus, recognized by its pattern of white spots scattered across a brownish-gray body and the development of a short, blunt horn on the forehead of mature adults. Growing to approximately 24 inches, this is a substantial fish that commands attention in any marine aquarium large enough to house it.

In the wild, Spotted Unicornfish are found on outer reef slopes, in channels, and near drop-offs throughout the Indo-Pacific. They are versatile feeders, primarily grazing on leafy brown algae such as Sargassum and Dictyota, but also supplementing their diet with zooplankton when available. They are strong swimmers often seen in schools or small groups in areas with moderate to strong currents.

In captivity, the Spotted Unicornfish requires a very large aquarium of at least 300 gallons. It is a hardy species once established, readily accepting dried nori seaweed and a variety of prepared foods. Like all large tangs, it is susceptible to ich and HLLE, making excellent water quality and a nutritious diet paramount. Its impressive size and unique horn make it a memorable addition to a suitably large reef or FOWLR system.