Breeding Naoko's Fairy Wrasse (Cirrhilabrus naokoae)

Cirrhilabrus naokoae is a small Indonesian fairy wrasse that changes sex from female to male. It spawns pelagically with planktonic larvae that cannot be reared at home; this guide explains its reproduction.

Overview

Cirrhilabrus naokoae (Randall & Tanaka, 2009) is an eastern Indian Ocean fairy wrasse from Indonesia, with the type material taken from the aquarium trade and probably originating off Sumatra. It is reef-associated, usually found at 10 to 20 m, and stays small at about 6 cm standard length. Like its relatives it is a planktivorous, protogynous wrasse whose breeding follows the genus pattern.

Sexing

Males of C. naokoae show distinctive live colours, with red dorsal areas, bluish ventral regions and a yellow lateral stripe, and notably broad, long pelvic fins extending beyond the spinous part of the anal fin; female coloration differs. As a protogynous hermaphrodite, the species begins life as females, and the dominant individual changes into a functional male, so the brightest, longest-finned and largest fish is the terminal male.

Spawning Behavior & Trigger

FishBase records distinct pairing during breeding for C. naokoae. In keeping with the genus, a male advertises readiness through a brief 'flashing' display, transiently revealing metallic blue or violet markings that are hidden at rest, both to attract females and to deter rival males. A receptive female then joins the male in a short paired ascent into open water where buoyant eggs and sperm are released together.

Egg & Fry Care

Naoko's fairy wrasse is a broadcast spawner whose small buoyant eggs hatch into planktonic larvae; there is no nest and no parental care. The larvae feed and drift in open water through an extended pelagic stage, which cannot be reproduced in home aquaria. Captive breeding of this species has not been reported.

Common Challenges

The limiting step is rearing the planktonic larvae, not coaxing adults to spawn. A spacious system with open swimming room and small zooplankton-type foods supports natural behaviour, but the larval phase remains beyond home-scale culture.