Pomacanthus imperator also known as the Emperor angelfish is a striking addition, whose ease of keeping is high, though it can be aggressive, especially to its own species as it is a very territorial angelfish. Found mainly on outer reefs of live coral, it is common on northern section of the Great Barrier Reef and also at New Guinea at depths from 1-25 meters. Pomacanthus imperator is also found from the Red Sea and East Africa to Hawaii. They are quite often seen in groups of up to 4 or more; rarely see the juveniles in any group.
As juvenile it has a bluish black body adorned with concentric white circles. The dorsal fin margin is also white. Juveniles will change into their adult colouration over the size range 8-12 cm. The stunningly vivid and beautiful colors of the adult Emperor angelfish make it unmistakably. The adult fish is blue and decorated with close-set horizontal yellow stripes on the sides and the adjoining dorsal and anal fins. The caudal fin is of a striking yellow to orange shade. The eye is enclosed by a black vertical bar with blue edging. The pectoral fin base is black while the snout is white.
Pomacanthus imperator is not a good reef dweller, is prone to nip at stony and soft corals (sessile invertebrates) and clam mantles, but may be kept with small-polyped stony corals and somewhat noxious soft corals. Pomacanthus imperator is difficult to keep as it feeds in the wild primarily on a wide variety of sponges and tunicates, but also on algae, zooantharians, gorgonians, hydroids, and bryozoans.
Pomacanthus imperator will reach 40 cm in the wild, and must be given plenty of room to avoid confinement stress issues---we recommend 3500 liters and up. The Emperor angelfish should be reserved for established tanks with at least 12-18 months growth of green micro algae, or even better some live rock and the experience to go with it.
Acanthochaetodon imperator (Bloch, 1787)
Acanthochaetodon nicobariensis (Bloch & Schneider, 1801)
Chaetodon imperator Bloch, 1787
Chaetodon nicobariensis Bloch & Schneider, 1801
Holacanthus imperator (Bloch, 1787)
Holacanthus nicobariensis (Bloch & Schneider, 1801)
Pomacanthodes imperator (Bloch, 1787)
Pomacanthodes nicobariensis Schn., 1801
Pomacanthus nicobariensis (Bloch & Schneider, 1801)
Classification: Biota > Animalia (Kingdom) > Chordata (Phylum) > Vertebrata (Subphylum) > Gnathostomata (Superclass) > Pisces (Superclass) > Actinopterygii (Class) > Perciformes (Order) > Pomacanthidae (Family) > Pomacanthus (Genus)