Species · GBIF taxon 2379534
Palette Surgeonfish
Paracanthurus hepatusAlso known as Blue Tang, Regal Tang, Hippo Tang, Flagtail Surgeonfish
Palette surgeonfish navigate high-current reef slopes in loose aggregations, feeding primarily on drifting zooplankton. When threatened, these vibrant fish wedge themselves tightly into the branches of cauliflower corals, using their sharp tail spines to lock in place. Young individuals rely heavily on protective coral heads, while mature adults roam wider territories across the reef crest.
Reef-dwellingColorfulDiurnal

Licensed reference(c) H. Krisp, some rights reserved (CC BY) · cc-by
- diet
- Zooplankton and algae
- family
- Acanthuridae
- threats
- Habitat degradation, coral bleaching, and unsustainable aquarium harvesting
- life Span
- 8 to 20 years
LC
Sharp caudal spines can inflict deep, painful cuts; avoid touching or handling.
Possesses razor-sharp, forward-facing caudal spines on either side of the tail base that can slash hands or predators.
Never touch or attempt to grab this fish; if handling is necessary, use a solid container rather than a net.- Observe from a distance: Watch them dart among branching corals where they seek shelter.
- Look for schooling behavior: Spot them in small groups feeding on zooplankton just above the reef crest.
