Masked Bannerfish (Heniochus monoceros)

Fish in the family Chaetodontidae. Moderate care. Reef Safe with Caution.

Masked Bannerfish

Quick facts

Scientific nameHeniochus monoceros
FamilyChaetodontidae
Care levelModerate
Reef safetyReef Safe with Caution
TemperamentPeaceful
Dietomnivore
Adult size8 in
Minimum tank size125 gallons
Water parametersTemperature: 72-78°F pH: 8.1-8.3 Salinity: 1.023-1.025
Feeding schedule2-3 times daily

Appearance

The Masked Bannerfish is a yellow and white butterflyfish with a distinctive black mask across the eyes and a black band on the dorsal fin. The body is predominantly yellow-white with a prominent elongated dorsal filament that extends well above the body, and the pectoral fins are transparent to translucent.

Diet and feeding

In captivity, offer a varied diet of high-quality flaked foods, small crustaceans (mysis shrimp, copepods), and occasional vegetable matter. Feed small portions 2–3 times daily to match their natural feeding behavior on small invertebrates and zooplankton.

Difficulty and care for the Masked Bannerfish

Moderate - Requires some experience due to specific dietary water or tank requirements. Best suited for intermediate aquarists.

Common health issues

Ich, parasitic infections, shipping stress, poor feeding response in captivity

Origin and habitat

Indo-Pacific region from the Red Sea and East Africa through Southeast Asia to the Philippines and Indonesia, typically found in coral reef environments at depths of 5–50 meters.

Log Masked Bannerfish in your reef tank

Reef Trak gives you the full record on every species in your tank: acquisition date, source, photos, parameters at time of stocking, and links to maintenance and feeding events. Track Masked Bannerfish alongside everything else in your reef.