Caerulean Damsel

Pomacentrus caeruleus

The Caerulean Damsel is a small, reef-associated fish found in the Western Indian Ocean, ranging from East Africa to the Maldives. It reaches a maximum length of 10 cm and is known for its fusiform, compressed body shape. Divers can identify this species by its distinct dorsal and anal fin structures, which include 13 dorsal spines, 14-15 dorsal soft rays, 2 anal spines, and 15-16 anal soft rays. This damselfish inhabits lagoon and outer reef slopes, typically residing over rubble near the base of reefs. It is non-migratory and can be found at depths ranging from 1 to 20 meters. The species is oviparous, with distinct pairing during breeding. Males play an active role in reproduction by guarding and aerating the eggs, which are demersal and adhere to the substrate. Divers encountering the Caerulean Damsel will find it harmless and of no interest to fisheries. The IUCN Red List categorizes it as Least Concern. While the species occasionally enters the aquarium trade, it remains a common sight at various dive sites within its distribution range.