spotted unicornfish

Spotted Unicornfish

Naso brevirostris


The spotted unicornfish’s horn develops later in its life.

Exhibit Name and Location:
Blacktip Reef

Spotted Unicornfish

Adult spotted unicornfish can be anywhere from bluish-gray to olive-brown in color. They often have small irregular stripes on the sides of their body. The juveniles, however, may have darker spots. The fish’s prominent horn is not found in juveniles and actually develops later in life.

These unicornfish are typically found in small groups in reefs and along lagoon drop-offs. They have also been spotted along rocky coasts. In addition, they may group into larger schools at times.

Spotted Unicornfish Facts


Adults feed primarily on zooplankton but may also eat algae.


Reported to reach a maximum length of 60 centimeters.


They live in the Indian and Pacific Oceans, from along East Africa to Hawaii, and as far north as southern Japan.

Population Status

Listed as "least common" on the IUCN Red List

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Holly Bourbon
Curator of Large-Fish Exhibits/Diving Safety Officer

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As the curator of large-fish exhibits, Holly's day-to-day responsibilities include managing our staff of aquarists and making sure that all of the animals under our care are doing well! Learn More

A Note From the Caretaker

If you look carefully at our Spotted Unicornfish, you will notice that several are entering their adult phase and developing horns. One of ours is probably already a full adult and has a truly impressive horn.

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