Scientific name: Pomacanthus Imperator.

Common name: Fish Ángel Emperor.

Origin: Ocean Indus Peaceful, since the Red Sea and Oriental Africa until the islands of Hawaii, Islands of the Line and the Islands Tuamoto. Also it can find since the south of Japan, next to the south to the Big Barrier of Choral, New Caledonia and the Islands Australs. They are absent of the Easter Island, Rapa and the Marquesas Islands.

Habitat: Associated to the coral reefs in the means wild. They observe in different depths, since waters little deep to the zones of 100 metres of depth. The exotic fish angel emperor Pomacanthus Imperator, is one of the fishes angel more recognised in the sea. It treats of an extraordinary beauty so much in the youth and as a adult.

Morphology: It has a thick body and flattened , a small mouth with teeth tiny . Only has a dorsal fin. The young specimens are blue with the tail and the  dorsal fin white, and some concentric white circles the centre of which is the start of the tail. Of adult possesses a showy colorful: a black mask that extends since the eyes until the principle of the trunk, a yellow body with blue lines horizontals, a yellow tail and a anal fin violet. The male is bigger that the females and the band that covers his eyes is of dark blue colour whereas in the females this band is of bluish grey colour. His living average hope is of 10 years.

Maintenance: The animals of wild origin have problems of adaptation especially if they are adults refusing the food. Whenever it was possible is better to choose juvenile. If they acclimate are hard fishes that reach to live for a long time. They are sensitive to the “syndromes of new tanks”. Only it has to place in the systems that have been experienced by some months. Good quality of the water and constant circulation, is also important.

PH: 8.1   -    8.4           Temperature:  24   -   28  º C          Density: 1022    -   1025

Behaviour: In the nature find only, in couples, in a trio or a harem of a male and two females or more. They are in general peaceful in the aquarium, but can be aggressive with other fishes angel emperor and other species of fishes angel of big size. They harass to the smallest fishes how gobies, fishes clown and blenios. Due to the fact that they establish territories that go to defend, has to be the last fish that enters in the tank. An adult can be well with one under age of the same species until the change of colour, moment in which the adult goes back intolerant. The male have harems of 2 to 5 females. They are species sequential hermaphrodites, which thing means that if a male dies, one of the females of the harem transforms in male.

 Feeding: Varied diet of spirulina and marine seaweeds. It include foods of marine origin, how the mysis shrimp, raw shrimp, and the formulas prepared commercially for fishes angel.

Reproduction: The success of it breeds in captivity only can carry out in a aquarium of exhibition very big. The majority of the amateurs of house does not have a sufficiently big tank and for foster the reproduction of this fish angel. After from courtship him follows the putting, that is effected while the couple ascends by column of wàter interlaced . Releasing  eggs and sperm. During spawning the females hide their stripes of the sides. Both member of the couple emit low- frequency sounds from its swim bladder.