Males develop light blue in head, body and fins with several black vertical bars in the body. Females remain yellow.
A reliable way to sex this species early on is that males will usually show an egg spot in the anal fin before the color change.
Located and endemic to Taiwan Reef, north of Chizumulu Island. Found in a location that experiences strong currents over a habitat of large boulders and rock piles. Diet in the wild consists of invertebrates taken off the rocks.
The aquarium should have plenty of rockwork to provide shelter, territorial markers and spawning sites. Feed a quality cichlid flake/pellet food. Supplement with spirulina flake and frozen foods such as krill, brine or mysis.