Blue Angelfish

Geographical Origin and Habitat: Common in the subtropical Western Atlantic, including Bermuda, Florida, the Bahamas, and the Gulf of Mexico. Found on coral reefs and rocky slopes down to 90 meters. This large angelfish is native to the Western Atlantic, ranging from Bermuda and Florida to the Bahamas.

Taxonomy and Morphology: Member of the family Pomacanthidae. Features a deep, disc-shaped body that can reach 45 cm in length. Equipped with stout opercular spines. It has a deep, compressed body with long filaments extending from the soft portions of the dorsal and anal fins.

Social Behavior: Strongly territorial and aggressive, especially as adults. Lives a solitary or paired lifestyle, actively defending feeding territories. A solitary species, it spends its time foraging on benthic substrates, especially feeding on marine sponges.

Coloration and Sexual Dimorphism: Adult body color is bluish-grey with brown shades, highlighted by yellow-rimmed fins and electric blue edges. Juveniles are dark blue with curved light-blue vertical bars. No sexual dimorphism. Displays a blue-brown base color with bright yellow margins on the scales, pectoral fins, and tail borders.

Aquarium Setup: Requires a massive tank of at least 800 liters. Rockwork must be stable and secure, with plenty of open swimming channels. A very large tank of at least 700 liters is required to house this species at adult size and allow swimming.

Diet and Feeding: Specialized omnivore. Sponges make up over 70% of its wild diet. Must be offered angelfish preparations containing sponge material, along with spirulina, chopped clams, and mysis. Feed a specialized diet containing marine sponges, spirulina, frozen mysis, and high-quality pellets.

Water Quality: Maintain stable marine conditions: temperature 22-27 °C, pH 8.1-8.4, salinity SG 1.020-1.025. Strong filtration and high-performance skimming are mandatory. High water quality, stable pH, and efficient protein skimming are essential to maintain its long-term health.

Compatibility and Cohabitation: Not Reef Safe. Nips and feeds on soft/hard corals and clam mantles. Best housed in large fish-only setups with robust companions. Not reef-safe; it will nip at stony and soft corals, zoanthids, and clam mantles. Keep in FOWLR tanks.

Aquarium Breeding: Broadcast pelagic spawners. No captive breeding records exist in home aquariums. Spawning is pelagic and has not been successfully achieved or reared in home aquariums.

Risks and Diseases: Prone to Head and Lateral Line Erosion (HLLE) if dietary needs (sponges/vitamins) are not met. Susceptible to ectoparasites under stress. Prone to Head and Lateral Line Erosion (HLLE) and marine ich; provide vitamin supplements on food to prevent HLLE.