Wedge Trigger

The Wedge Trigger, commonly known by its Hawaiian name Humuhumunukunukuapuaa, is one of the most culturally significant triggerfish species in the world. It serves as the official state fish of Hawaii, a title reflecting its abundance and cultural importance in Hawaiian waters. The species features a distinctive color pattern with a tan to olive body, bold black wedge-shaped markings on the flanks, a yellow stripe running from the mouth to the pectoral fin base, and blue and black striping near the tail.

This species is closely related to the more commonly seen Picasso Triggerfish (Rhinecanthus aculeatus) and shares many behavioral characteristics. It is an active, curious, and intelligent fish that patrols its territory with purpose. In the wild, it inhabits shallow reef flats and lagoons where it feeds on a variety of benthic organisms including algae, detritus, crustaceans, worms, and small invertebrates. It is known to produce audible grunting sounds when threatened or excited.

The Wedge Trigger is aggressive and territorial, particularly as it matures. It will claim a section of the aquarium as its own and vigorously defend it against intruders. Despite this aggression, it is hardy, adaptable, and entertaining to watch. A minimum of 180 gallons is recommended with robust rockwork providing territory boundaries. It is not reef-safe and will consume ornamental invertebrates and potentially damage corals.