Goldenback Triggerfish

(Xanthichthys caeruleolineatus)

Xanthichthys Triggerfish should be added to well established aquariums with plenty of room to swim. Plenty of rock work with caves and crevices should be provided for hiding. Triggerfish are known to turnover rocks, rubble, benthic invertebrates and corals. Provide a sand bed with rubble and seashells to turnover while hunting for prey. Triggerfish are carnivores feeding on small fish, starfish, crabs, shrimp, snails and urchins. They are capable of breaking off the spines of urchins and blowing water to turnover urchins and attacking the underside. They are hardy and beautiful but quite aggressive, Triggerfish have even been known to attack divers when to close in the wild. Triggerfish should only be kept with large fish that are not easily harassed. A diet of meaty based foods should be provided. May loose coloration if not adequately fed. Triggerfish should be kept singly or mated pairs as they can be aggressive. Male and females may exhibit color differences.

Goldenback Triggerfish are also sometimes known as the Blue Chin or Gilded Triggerfish. Not often seen in the aquarium trade. Male and female Goldenback Triggerfish may have slight color differences. Males are tan with a blue spot that starts at its mouth and runs to its gills, small light colored spots and a yellow trimmed light gray colored dorsal, anal and tail fin. Females are not generally seen with the blue throat. Goldenback Triggerfish can grow to slightly over 9".

We recommend a minimum aquarium size of 250 gallons or larger for this species.

Water conditions: Salinity 1.020 - 1.025, Temp (F) 72 - 78, pH 8.1 - 8.4, Alkalinity 8 - 12 dKH

  • Care: CareModerateModerate
  • Behavior: BehaviorSocialSocial
  • Diet: DietLive FoodLive Food DietFrozen FoodFrozen Food
  • Habitat: HabitatReefReef
  • Light: LightHighHigh