Common name: Semicircle angelfish

General information

The Koran Angelfish, scientifically known as Pomacanthus semicirculatus, is a stunning marine fish that is highly sought after in the reefkeeping hobby. This species is known for its striking coloration and patterns, which change dramatically from the juvenile to the adult stage. Juveniles exhibit a blue body with white and blue stripes, while adults have a predominantly blue-green color with a yellow or blue rim on their scales, creating a beautiful semicircular pattern.

Care

Koran Angelfish require a spacious aquarium due to their potential size, reaching up to 40 centimeters in length. They need plenty of swimming space and rockwork to graze on and hide among. This species is not considered reef-safe, as adults may nip at stony and soft corals, clams, and large-polyped stony corals. A varied diet of marine algae, spirulina, mysis shrimp, and other high-quality angelfish preparations will help maintain their health and coloration.

Reproduction

In the wild, Koran Angelfish form harems consisting of one male and several females. They are broadcast spawners, releasing eggs and sperm into the water column where fertilization occurs. While breeding in home aquariums is rare, providing a stress-free environment with excellent water quality can encourage spawning behavior.

Habitat

Koran Angelfish are found in the Indo-Pacific region, from the Red Sea and East Africa to the central Pacific. They inhabit coral-rich areas and lagoons, often in clear water near drop-offs, from shallow waters to depths of around 30 meters.