Moorish idol
Zanclus cornutus
- Scientific name
- Zanclus cornutus
- Group
- Reef fish
- Rarity
- Common
- Where to see it
- Indo-Pacific & Red Sea
- Conservation status (IUCN)
- Least concern
Did you know?
The Moorish idol is easy to spot thanks to its long trailing dorsal filament, which can be longer than the fish's own body. It feeds mainly on sponges, a specialized diet that makes it notoriously difficult to keep in aquariums.
What defines this group — Reef fish
The bony fish that live against coral and rock: the living backdrop of almost every dive.
- A bony skeleton, scales, and a rigid gill cover closing over the gills.
- A swim bladder acts as a float: they hold their depth without swimming.
- Many change colour, pattern — sometimes even sex — over the course of their life.
Other species in this group
- Ocellaris clownfish
- Blue tang
- Red lionfish
- Spot-fin porcupinefish
- Mediterranean moray
- Clark's anemonefish