Queen Angelfish Breeding Guide

Holacanthus ciliaris is a large protogynous Atlantic angelfish that pair-spawns near the surface, releasing pelagic eggs. Its planktonic larvae are not rearable at home.

Overview

The queen angelfish (Holacanthus ciliaris) is a large pomacanthid of the western Atlantic, ranging from Florida through the Caribbean to Brazil and out to Bermuda, on coral reefs from shallow water down to about 70 m. It reaches up to 45 cm in length and is assessed as Least Concern (2010) by the IUCN. Home breeding is not established; the following describes documented wild reproduction.

Sexing

The species is a protogynous hermaphrodite. Males hold large territories containing harems of two to four females, and the largest harem female can transform into a male if the territorial male disappears.

Conditioning

No home conditioning protocol is documented. Adults are selective sponge feeders, with 68-90% of the diet made up of sponges, a specialised diet that itself complicates long-term captive care.

Spawning Behaviour & Trigger

Spawning occurs year-round but is observed around the full moon. Courtship involves the male displaying his flanks, flicking his pectoral fins at the female and soaring above her. During spawning the female rises toward the surface with the male beneath her, and a female may release between 25,000 and 75,000 eggs per day.

Egg & Fry Care

The eggs are pelagic and remain suspended in the water for 15-20 hours. Newly hatched larvae carry a large yolk sac and have no functional eyes, gut or fins; after about two days they develop fish-like features and become plankton-eaters. At three to four weeks and 15-20 mm they descend to the reef as juveniles. There is no parental care and no practical way to rear these planktonic larvae at home. As juveniles, the young act as cleaner fish and establish cleaning stations for other reef fishes.

Common Challenges

The size of the fish (requiring very large systems), a sponge-based natural diet, and a pelagic larval phase with tiny first-feeding larvae together place reproduction far beyond home aquaria.