Triggerfish are a unique species of marine fish that get their name from their ability to spread their dorsal spine and second spine "trigger" to lock itself into a hole or crevice. These fish can make an entertaining pet for homes that can keep an aquarium large enough to be suitable for them with their curious and fearless personalities. Commonly referred to as "dog-like", triggerfish will often interact with their person through the glass once they have had time to acclimate to their home.
Due to their destructive nature and habit for rearranging rockwork, as well as fondness for invertebrates in their diet, triggerfish are not generally recommended as good inhabitants of a reef tank. Triggerfish can be especially aggressive depending on species, so caution should be used when adding any tankmates. More peaceful species of triggerfish may be able to be kept with angelfish, pufferfish, tangs, or other large species, but only in large aquariums with plenty of swimming space and rock.
Most species of triggerfish can be aggressive and destructive, frequently moving around rockscape, so they are not recommended for the reef aquarium. They may also make a snack of any small fish or invertebrates.