Bicolor Cleaner Wrasse Breeding Guide (Labroides bicolor)
Labroides bicolor is an Indo-Pacific cleaner wrasse that lives at cleaning stations and spawns pelagically; it is not home-bred, and this guide documents its real reproductive biology and care difficulty.
Overview
The bicolor cleaner wrasse (Labroides bicolor) belongs to the cleaner-wrasse genus Labroides, native to the Indian and Pacific Oceans. Like the rest of the genus it is a cleaner fish, removing ectoparasites from larger client fish at fixed cleaning stations. It carries a two-tone yellow-and-blue pattern and shares the demanding dietary needs of its close relatives.
Sexing
Cleaner wrasses of the genus Labroides are protogynous hermaphrodites that live in harems controlled by a dominant male. Documented for the genus, when the dominant male disappears one of the larger females changes sex to take over the territory. Sex therefore tracks social rank, and a fixed visual sex marker for an individual is not reliable.
Spawning Behavior & Trigger
Cleaner wrasses maintain cleaning stations and pair from within the harem to spawn. As oviparous reef wrasses they are pelagic broadcast spawners, releasing gametes into the water column so fertilised eggs drift away as plankton. No captive spawning trigger is documented for this species.
Egg & Fry Care
Fertilised eggs are pelagic and hatch into planktonic larvae dispersing in open water. This larval phase is the central barrier to captive rearing, and there is no home-aquarium fry-rearing protocol for the species.
Common Challenges
The overriding obstacle is diet: cleaner wrasses feed on ectoparasites and mucus from client fish and often fail to accept substitute foods, so many individuals starve in aquaria. This specialised feeding, combined with harem social structure and pelagic larvae, makes both long-term keeping and breeding impractical, and the species remains wild-caught.