Moorish Idol
Zanclus cornutus · Fish, Vertebrate, Cold-blooded, Wild
Animal Family
Zanclidae, order Perciformes, class Actinopterygii
Animal Category
Marine Animal
Breed / Variety
Moorish Idol (monotypic species)
Conservation Status
Least Concern, population stable, threatened locally by habitat degradation and collection for the aquarium trade
About This Creature
Compressed, disk-like body with striking vertical bands of black, white, and yellow; grows up to 23 cm in length; distinctive elongated white dorsal fin filament
Physical Characteristics
Deep, disc-like body structure, tubular snout with small mouth, elongated third dorsal spine forming a whip-like filament, vibrant coloration with contrasting vertical black and white stripes and a yellow midsection
Behavior & Temperament
Socially found in pairs or small groups, diurnal, peaceful yet territorial with conspecifics, non-migratory reef dweller
Habitat & Diet
Origin Region
Indo-Pacific region, Red Sea, East Africa to Hawaiian Islands and Galápagos Islands
Habitat
Ocean/Marine, Coral Reef; Aquatic
Diet & Nutrition
Omnivore, feeds primarily on sponges, tunicates, coral polyps, and benthic algae using its small tubular snout
Lifespan & Health
Lifespan is up to 2-5 years in the wild, notoriously difficult to keep alive in captivity due to specialized dietary needs
Special Characteristics
Famous for its inability to thrive in captivity; named after the Moorish people who supposedly believed the fish brought happiness
Ecological Information
Plays a role in controlling sponge and benthic invertebrate populations on coral reefs, contributing to reef health