Emperor Angelfish
A type of marine angelfish is called the Emperor Angelfish (Pomacanthus imperator). It is a fish that lives near reefs and is found in the Red Sea, the Indian and Pacific Oceans, Hawaii, and the Austral Islands. This species typically has steady numbers and is not endangered in any significant ways. Because of its distinctive, vivid pattern of colors, it is a favorite among photographers, artists, and aquarists.
The emperor angelfish exhibits a clear distinction between its juvenile and adult forms. The bodies of the juveniles are dark blue with concentric curving lines that alternate between pale blue and white, the smallest of which are placed posteriorly and are totally encased within one another. At the front, these lines are vertical. The caudal fin is transparent, whereas the dorsal fin has a white edge around it. The adults have a light blue face with a dark blue mask covering the eyes, horizontal blue and yellow stripes, and a yellow caudal fin. Above the pectoral fins, there is a blackish band, the top of which is above the level of the upper orbit. The front margin of this band is bright blue and the rear margin is a thin yellow line. The anal fin has a dark blue background with light blue horizontal stripes.