The Swallowtail Angelfish is also recognized by other common names such as Japaneses Swallowtail, Blackspot, Blackspot Lyretail, Zebra Angelfish and Spotbreast. This fish from the Pomacanthidae family can be easily identified by sex as male or female because of their difference in appearance. The female fish is yellow dorsally and light blue ventrally with a highly-flared tail in its appearance. The Swallowtail Angelfish is peaceful in nature and hence can be kept as a mated pair or in schools. They have a maximum size of 7 inches in the wild but are imported at a much smaller size. The swallowtail Angel should be kept in a tank of minimum 55 gallons at a temperature of 72-78 degree Fahrenheit at a maintained pH level between 8.1-8.4. Swallowtail Angelfish is a very good reef compatible candidate as they will never nip at any stony or soft corals. They are omnivorous in diet and feed on krill, squid, raw table shrimp, mussel and clam. It is important to feed these Swallowtail Angelfish with all kinds of frozen, live and prepared formula foods in small amounts several times in a day. They need a moderate level of care and a moderate to dim lighting. Swallow Angelfishes lay eggs and needs expert husbandry. They are available in a color form of red, blue, yellow and white.