International Aquatics
Masked Bannerfish
Masked Bannerfish
🛡️ International Aquatics Quarantine & Guarantee
All fish are checked by marine vets, given a formalin bath, and held for 14 days in copper-treated systems. We feed Selcon-soaked food with Kanaplex and Metroplex during quarantine. Unless marked, all livestock comes with our 15-Day Guarantee. You will receive a video of your fish eating before shipment. For size preference please add a note on your order and we will match your fish to your requested size. If you just want the fish without our QT process, Please email us directly with your order number. Please note this does waive the 15 day guarantee.
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My species/animal is a fish — the Masked Bannerfish (Heniochus monoceros). It is a peaceful species that is reef-safe with caution, admired for its dramatic black-and-white coloration, elongated dorsal fin that forms a flowing “banner,” and the distinct dark mask-like marking over its eyes. This species also features a faint horn-like bump on the forehead, adding to its unique appearance.
Males typically are visually similar to females, with no clear external differences, though subtle size or behavioral distinctions may be observed during breeding or territorial displays. Females/juveniles resemble adults closely, though juveniles often have shorter dorsal filaments and slightly softer coloration that develops with maturity.
They reach about 7–8 inches in adult size and should be housed in aquariums of at least 100 gallons.
Provide plenty of live rock for foraging and hiding, open swimming space, and a soft sandbed, stable water parameters (salinity ~1.020–1.025, temp ~72–79°F, pH ~8.1–8.4), and a secure lid since many species are prone to jumping.
Diet should consist of frozen mysis shrimp, brine shrimp, copepods, finely chopped seafood, sponge-based frozen foods, and high-quality marine pellets or flakes. They may occasionally graze on algae and coral polyps, and with proper care this fish makes a standout addition to the aquarium.
International Aquatics Quarantine & Guarantee: All fish are checked by marine vets, given a formalin bath, and held for 14 days in copper-treated systems. We feed Selcon-soaked food with Kanaplex and Metroplex during quarantine. Unless marked, all livestock comes with our 15-Day Guarantee. You will receive a video of your fish eating before shipment. On request, we also send photos/videos after arrival at IA. Some species are import-to-order (3-10 business days). Many common species are already cleared or near the end of QT.
Several species will be import-to-order and may take anywhere from 3-10 business days to secure. Once your fish is secured, you will be notified, and the quarantine process will then begin.
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