The Emperor Angelfish (Pomacanthus imperator) is also known as the Imperator Angelfish. As the common name suggests this is one of the most striking of Angelfish, with the adult coloration of yellow and blue stripes, plus a black 'mask' around the eyes.
The juvenile is black with circular white and blue stripes starting at the tail. The changing angelfish will vary in coloration and pattern as it transforms from juvenile to the adult's vivid coloration.
Care must be taken as the Emperor Angelfish can often be a poor acclimator and is a very shy fish, which lengthens the time it takes for them to accept a captive diet.
The Emperor Angelfish is a very timid creature that requires lots of hiding places in a rocky Aqua-scaped aquarium with ample amounts of live rock for grazing on microalgae and diatoms. While they sometimes can harm non-sessile invertebrates such as shrimp or crabs.
They have been known to occasionally nip at SPS corals and some species of polyp corals or zoanthids. Although if they are well fed on a diet of Spirulina, marine algae, high-quality angelfish preparations, mysis or large chunks of raw meaty frozen shrimp, squid, clam, and mussels they tend not to bother corals too much.
Saltwater Angelfish are from the Pomacanthidae family. They are found along shallow reefs in the tropical water of the Atlantic, Indian and mostly Western Pacific Oceans. The Pomacanthidae family has approximately 86 species.
Saltwater Angelfish are incredibly colorful and come in a variety of sizes. With their bright colors and deep, laterally compressed bodies, the Angelfish are some of the more colorfully visible residents along any reef. For the most part, Saltwater Angelfish prefer to live among shallow reefs. They like moving about and feeding during the daytime, and at night seeking refuge among crevices and small caves in the reef and rocky outcrops.
As juveniles, some species of Angelfish will have a completely different coloration and markings than they do as adults.
As Adults, the Angelfish becomes quite territorial towards other adult Angelfish, especially from the same species.
Many are solitary, but some are found in pairs, or living in small groups consisting of a singular dominant male and several females. Most people don’t know the Angelfish is protogynous hermaphrodites, which means as juveniles they start life as a female and as they mature the dominant specimens in each group turn into a male. The males can also revert back to female if the social status changes at any time.
Many species of Saltwater Angelfish have streamer-like extensions of the soft dorsal and anal fins. All the Angelfish have small mouths, relatively large pectoral fins, and rounded tail fins.
Saltwater Angels are among one of the most popular fish for the home saltwater aquarium, and most Angelfish adapt well to captivity. The Angelfish nutritional needs consist of microalgae, macroalgae, sponges, and zooplankton. It is advisable not to keep Angels from the same genus in the same aquarium, as territorial fighting will usually occur.
should include Spirulina, marine algae, mysis shrimp along with other meaty fare, and live rock for grazing.
Emperor Angel 15-20 cm
Scientific Name Pomacanthus imperator Origin Indonesia, Maldives, Sri Lanka Max Size 30 cm Reef Safe Caution Required Min Tank Size Medium-Large Diet Omnivore Care Level Moderate Temperament Semi-Aggressive