Common name: bicolor damselfish

General information

The Half-and-half chromis, Chromis dimidiata, is a small and peaceful marine fish that is well-suited for community reef aquariums. It is known for its striking coloration, with the front half of its body being a pale blue and the rear half a darker blue to black. This species is often found in schools in the wild and can add a dynamic element to a home aquarium when kept in small groups.

Care

Chromis dimidiata is a hardy species that adapts well to life in captivity. They thrive in well-established aquariums with stable water conditions and plenty of swimming space. A tank with live rock formations and moderate to strong water flow mimics their natural environment and provides them with hiding places and areas to establish territories. They are omnivorous and will accept a variety of foods, including small meaty items and high-quality flake or pellet foods.

Reproduction

In the wild, Chromis dimidiata spawn in groups, releasing eggs and sperm into the water column where fertilization occurs. In the aquarium, they may spawn if they are kept in a large enough group and the environment is to their liking. The eggs are pelagic, meaning they float with the currents until hatching.

Habitat

The Half-and-half chromis is commonly found in the Indo-Pacific region, from the Red Sea and East Africa to the central Pacific. They inhabit coral reefs and lagoons, often seen at depths ranging from 1 to 15 meters. They prefer areas with strong water movement and are typically associated with staghorn corals and other branching coral species.