Pygmy Cherub Angelfish Breeding Guide

Centropyge argi is a small Atlantic dwarf angelfish living in small harems and, like its genus, spawning pelagically. Its planktonic larvae are not rearable at home.

Overview

The pygmy cherub angelfish (Centropyge argi), also called the cherubfish or Atlantic pygmy angel, is a small pomacanthid of the western Atlantic from Bermuda and North Carolina through the Caribbean and Gulf of Mexico to French Guiana. It occurs over coral rubble at depths of about 5-18 m, reaching only 8 cm, and feeds on algae and small benthic invertebrates. Home breeding is not established; the following describes wild biology and the genus's reproductive mode.

Sexing

The species lives in small groups of around ten fish, usually a single male with a few females and juveniles. As a Centropyge dwarf angelfish it is a protogynous hermaphrodite, so a dominant individual develops as the male and the highest-ranking female can change sex if the male is lost.

Conditioning

No home conditioning protocol is documented. Its small harem structure means a single male should be kept with several females rather than with rival males.

Spawning Behaviour & Trigger

Centropyge dwarf angelfish are pelagic spawners. As documented for the closely related bicolor angelfish, the male visits females at dusk and the female releases eggs into open water for the male to fertilise; this dusk pelagic pattern is typical of the genus.

Egg & Fry Care

Reproduction is pelagic, with eggs and larvae developing in open water and no parental care. The planktonic larvae cannot be practically reared in a home aquarium.

Common Challenges

Although specialist facilities have captive-bred related Centropyge such as the coral beauty using cultured rotifers and copepods, that infrastructure is not reproducible at home. Pelagic spawning and tiny first-feeding larvae keep hobbyist reproduction out of reach.