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Masked Bannerfish (Heniochus monoceros)

Find Masked Bannerfish across reef-livestock retailers on ReefDock. Compare sources, check known pricing where available, and review care information before you buy.

Masked Bannerfish
Photo: Dr. Dwayne Meadows, NOAA/NMFS/OPR · Public domain
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Where to buy Masked Bannerfish

ReefDock searches the following reef retailers for this fish. Click through to see the live price.

  • Saltwaterfish

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  • Amazon

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  • Petco

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About Masked Bannerfish

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.

Key facts

Diet
omnivore
Origin
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.
Max Size
8
Diet Details
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.
Common Health Issues
Ich, parasitic infections, shipping stress, poor feeding response in captivity
Water Parameters
Temperature: 72-78°F pH: 8.1-8.3 Salinity: 1.023-1.025
Family
Chaetodontidae
Feeding Schedule
2-3 times daily
Difficulty Level
Moderate - Requires some experience due to specific dietary water or tank requirements. Best suited for intermediate aquarists.
Care Requirements
• Minimum 125 gallon tank for adult specimens; larger systems improve long-term survival • Maintain temperature range 72–78°F and salinity 1.023–1.025 • pH 8.1–8.3 with excellent water quality and strong skimming • Feed 2–3 times daily with varied small foods (mysis, copepods, quality flakes) • Provide plenty of swimming space and rockwork for refuge; avoid aggressive tank mates • Monitor closely for ich and parasites, common in newly imported specimens
Care Level
Moderate
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.

Research before you buy

ReefDock is the sister app to Reef Trak. Use Reef Trak to research and log fish, keep tank parameters organized, and maintain a complete livestock history. Log this fish on Reef Trak.

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