Details
Zanclus cornutus
Moorish idol is a fish associated with reefs. It is omnivorous and often found in pairs. It remains widespread in parts of its range, but local habitat change still matters.
Map: Ecoregions 2017 © RESOLVE (CC BY 4.0) · Natural Earth (PD)
Its range is represented here by the Pacific and the Indian Ocean, where it uses reefs. Mobile species may shift habitat use with season, breeding sites, or food availability.
Typical length 18-23 cm, weight 200 g-1 kg. It has a finned fish body plan, with proportions shaped by its habitat and mode of movement.
It is mostly active by day and often found in pairs. Spacing, group size, and visibility can change with season, feeding conditions, and breeding activity.
It is omnivorous. Food choice and foraging style are tied to life in reefs, so movements often follow available food resources.
Breeding usually involves spawning, with eggs and young developing in suitable freshwater, coastal, or reef habitats.
Recorded scientifically as Zanclus cornutus. It remains widespread in parts of its range, but local habitat change still matters. In this guide, size, habitat, and activity pattern are useful first clues for recognition.
