FAMILY -Chactodontidae SCIENTIFIC NAME - Chelmon Rostratus COMMON NAME - Copperganded butterflyfish, Beaked Coralfish SIZE - 7.8" (20 cm) RANGE - Andaman Sea, Papua New Guinea, Ryukyus, Northwestern Austrailia, Great Barrier Reef MIN. AQUARIUM SIZE - 75 US Gal. ( 284 L) FOODS AND FEEDING - Live clam, black mussel on the half shell, sessile invertebrates on live rock, live brine, mysid shrimp. AQUARIUM SUITABILITY - 4 REEF COMPATIBILITY - With caution. May nip some soft corals, feeds heavily on tubeworms appendages, small crustaceans. CAPTIVE CARE - Keep singly, in pairs, or in a small group if all introduced at same time, provide plenty of swimming space, hiding places, and adequate water movement simulating a turbid environment. Will eat glass worms, the heads of feather dusters, and will decimate polychaete worm populations, 72-81 F ( 22-27 C), Do not purchase any specimen with a pinched abdomen, make sure the fish is feeding prior to purchase. Specimens from Australia tend to acclimate to captivity better than specimens from other areas, the difference is suspected to be the method of collection.