HomeMarine aquarium fishTriggers, puffers & boxfishPinktail triggerfish Pinktail triggerfish (Melichthys vidua) Scientific name: Melichthys vidua Richardson, 1845 The Pinktail triggerfish (Melichthys vidua) is a marine fish of the family Balistidae. BiologyDorsal spines (total): 3; Dorsal soft rays (total): 31-35; Anal spines: 0; Anal soft rays: 28 - 31. Juveniles with dark lines radiating from eye and dark lines on anal and soft dorsal fins.Source: FishBase, licensed CC BY-NC 4.0. Species factsScientific nameMelichthys viduaFamilyBalistidae (Triggerfishes)OrderTetraodontiformes (Puffers and Filefishes)ClassActinopterygii (Ray-finned fishes)Maximum length40.0Depth range4–60 m (13–197 ft)EnvironmentMarine; reef-associated; depth range 4 - 60 mClimateTropicalDistributionIndo-Pacific: East Africa south to Durban, South Africa and east to the Hawaiian, Marquesan and Tuamoto islands, north to southern Japan, south to the southern Great Barrier Reef in Australia and New Caledonia.Conservation status (IUCN)Not EvaluatedThreat to humansHarmlessUsesFisheries: minor commercial; aquarium: commercialResilienceMedium, minimum population doubling time 1.4 - 4.4 years (Preliminary K or Fecundity.) More triggers, puffers & boxfishWhite-banded triggerfishRhinecanthus aculeatusWhitespotted filefishCantherhines dumeriliiWedge-tail triggerfishRhinecanthus rectangulusHalfmoon triggerfishSufflamen chrysopterumOrange-lined triggerfishBalistapus undulatusYellowmargin triggerfishPseudobalistes flavimarginatusSee all triggers, puffers & boxfish SourcesTaxonomy, distribution and biology data: FishBase (Froese, R. and D. Pauly, eds.), licensed CC BY-NC 4.0.Last updated 27 September 2026