Biafra Doctorfish (Prionurus biafraensis) Breeding Guide

Why Prionurus biafraensis is not bred at home: this eastern-Atlantic sawtail surgeonfish is a pelagic free-spawner whose drifting acronurus larvae cannot be raised in a home aquarium.

Overview

The Biafra doctorfish, Prionurus biafraensis, is the only species of the otherwise Pacific sawtail genus Prionurus that is endemic to the eastern Atlantic, along the West African coast. Like its relatives it carries bony, sharp-keeled plates on each side of the caudal peduncle. As an acanthurid it is a pelagic free-spawner, releasing eggs in open water, so it is not reproduced in home aquaria.

Spawning Behavior & Trigger

Surgeonfishes spawn by releasing eggs and sperm into the water column after pairing or aggregating, with spawning timed to lunar and tidal cycles. These open-water events cannot be reproduced in an aquarium.

Egg & Fry Care

Fertilised eggs are pelagic and develop into the transparent acronurus larva typical of the family, which drifts in the plankton before settling and metamorphosing into a juvenile. The fragility and feeding requirements of this larval stage place rearing beyond home means.

Common Challenges

There is no documented home breeding of this Atlantic sawtail tang. Its pelagic spawning mode and prolonged planktonic acronurus larva confine reproduction to specialised aquaculture facilities.