Blue Ring Angelfish

Pomacanthus annularis

Not Reef Safe

The Annularis Angelfish (Pomacanthus annularis), also known as the Blue Ring Angelfish, is a majestic species known for its bold electric-blue rings that sweep across a deep brown body, accented by a soft blue-white tail. This large, visually commanding angelfish can reach over a foot in length and thrives in fish-only or FOWLR systems with experienced care. It requires a spacious tank of at least 220 gallons, filled with ample rockwork and caves for hiding and grazing. While stunning, it is not reef-safe and may nip at corals, clams, and other sessile invertebrates, particularly near their bases. Semi-aggressive and potentially territorial once established, the Annularis should be housed with tankmates that can tolerate its presence. Like most large angelfish, it is hermaphroditic, with no visible sexual differences. A well-rounded diet including sponge-based angelfish formulas, marine algae, meaty foods, and occasional live offerings like brine shrimp will support its health and vibrant coloration. With proper space and care, the Annularis becomes a bold and captivating showpiece in large marine displays.

These fish are for saltwater aquariums only.

Due to variations within species, your item may not look identical to the image.

Measurements are measured from the tip of the head to end of the tail. 

Approximate Purchase Size: Juvenile Phase Small: up to 2"; Medium:  2"+ inches; Transitional Phase Medium: 3"-4";  Adult Small: 3" to 4"; Medium: 4" to 5"; Large: 5"+

For acclimation details see here.