Masked Butterflyfish

The Masked Butterflyfish is one of the most spectacular and sought-after butterflyfish species in the marine aquarium hobby, prized for its brilliant, uniform yellow coloration accented by a distinctive blue-black mask or cheek patch behind each eye. This species is endemic to the Red Sea and adjacent Gulf of Aden, where it is commonly found in pairs along coral-rich reef walls and slopes, often at depths between 3 and 20 meters. Its striking appearance and relatively hardy nature make it a crown jewel among butterflyfish enthusiasts.

In the aquarium, the Masked Butterflyfish is a moderately challenging species that generally adapts well to captive conditions when provided with a spacious, well-established system. It is one of the larger butterflyfish, reaching up to 9 inches, and requires a tank of at least 120 gallons. This species is frequently kept in pairs and is one of the few butterflyfish that can often coexist with a conspecific companion without serious aggression, provided the pair is introduced simultaneously.

The Masked Butterflyfish is not considered reef safe, as it will consume soft coral polyps, zoanthids, and other sessile invertebrates. It thrives in fish-only or FOWLR systems and is peaceful toward other fish species. Its Red Sea origin means it prefers stable, warm water with slightly elevated salinity, replicating the conditions of its native habitat.