Spotted Triggerfish

The Spotted Triggerfish is a large pelagic species that inhabits open ocean waters worldwide. Its body is a dark grayish-brown to black, covered with distinctive white spots that vary in size and density across the flanks. This species is unique among triggerfish in that it spends most of its life in open water rather than near reef structures, often found sheltering beneath floating debris, sargassum rafts, or other drifting objects in the open ocean.

Reaching up to 20 inches in length, the Spotted Triggerfish is a substantial fish that requires an equally substantial aquarium. Its pelagic nature means it is an active, restless swimmer that does not do well in confined spaces. In the wild, it feeds on zooplankton, jellyfish, small fish, and various floating organisms. This open-water diet translates to aggressive feeding behavior in captivity, where it will consume virtually any meaty food offered.

This species is relatively uncommon in the aquarium trade compared to reef-dwelling triggerfish. It is aggressive and territorial, especially toward conspecifics and similarly shaped fish. A 300-gallon aquarium with ample open swimming space is the minimum recommendation. The Spotted Triggerfish is not reef-safe and will consume invertebrates. Despite its challenges, it is extremely hardy and disease-resistant once established in a suitably large system.