Description
The emperor angelfish (Pomacanthus imperator) is a species of marine angelfish. It is a reef-associated fish, native to the Indian and Pacific Oceans, from the Red Sea to Hawaii and the Austral Islands. This species is generally associated with stable populations and faces no major threats of extinction. It is a favorite of photographers, artists, and aquarists because of its unique, brilliant pattern of coloration. Adults are typically 30-38 cm (12-15 in) in length, but can reach a maximum size of 45 cm (18 in). They have a blue body with yellow and blue stripes. The head has a black mask with a yellow stripe above and below it. The dorsal fin is yellow with a blue margin, and the anal fin is blue with yellow stripes. The caudal fin is yellow. Juveniles are black with blue and white circles. Emperor angelfish are omnivores and feed on a variety of invertebrates, including sponges, algae, and tunicates. They are also known to eat coral polyps, which can make them a nuisance in aquariums. Emperor angelfish are territorial and form pairs to breed. The female lays her eggs on a hard surface, such as a rock or coral. The male guards the eggs until they hatch. Emperor angelfish are popular aquarium fish, but they can be difficult to care for. They require a large tank with plenty of live rock and hiding places. They are also sensitive to changes in water quality.
