Imperator/Emperor Angel Adult (Pomacanthus imperator)
Max Size: 15 inches (1 foot 3 inches)
Reef Compatible: With Caution. May eat soft polyps
Minimum Tank Size: 220 gallon
The Emperor Angelfish, also known as the Imperator Angelfish, displays a striking blue body with bright yellow horizontal stripes that merge into a vibrant yellow to orange caudal fin. A black-blue mask covers the eyes and a similar colored vertical band extends from the pectoral fin two-thirds of the way up the body, highlighted in sapphire-blue in front and bright yellow caudally. The mouth is white. The juvenile Emperor Angelfish is black with circular white and blue stripes from the tail.
To keep an Emperor Angelfish in captivity, a tank of at least 220 gallons with live rock for grazing and hiding is required. They also need extensive rockwork and deep caves to feel secure. Although it may nip at stony and soft corals, it can be kept with small-polyped stony corals and slightly noxious soft corals.
Feeding the Emperor Angelfish should include Spirulina, marine algae, high-quality angelfish preparations, mysis or frozen shrimp, and other meaty items. It is important to note that the adult coloration may not be as vibrant in captivity, and the changing angelfish will vary in coloration and pattern as it matures from juvenile to adult.