Red Sea Half-And-Half Chromis

Pycnochromis dimidiatus

The Red Sea Half-and-half Chromis is a small reef fish endemic to the Red Sea. It is recognized by its distinctive color pattern, which helps distinguish it from other species in the Pycnochromis genus. This species typically inhabits lagoon and seaward reefs, preferring depths between 1 and 36 meters. Divers can often spot them in large aggregations over reef tops and on the upper edges of slopes, although they are also seen solitary, staying close to the substrate around 10 meters deep. This species is diurnal and exhibits interesting breeding behavior. It is oviparous, with distinct pairing during breeding. The males play an active role in reproduction by guarding and aerating the eggs, which are demersal and adhere to the substrate. For divers encountering this species, the Red Sea Half-and-half Chromis is harmless and poses no threat to humans. It is considered abundant in its natural habitat, making it a common sight for divers exploring the reefs of the Red Sea. The IUCN lists this species as Least Concern.