The Moorish Idol (Zanclus cornutus) is one of the most iconic and visually stunning reef fish, easily recognized by its long trailing dorsal fin and bold black, white, and yellow bands. Found throughout the Indo-Pacific, it inhabits coral reefs and lagoons, often seen in pairs or small groups. Despite its beauty, it is notoriously difficult to keep in aquariums due to its specialized diet and sensitivity to captivity. The species feeds on sponges, tunicates, and other encrusting organisms, requiring a varied and natural diet. Its name comes from the Moors of Africa, who believed the fish brought happiness and good luck.