Deep Reef Chromis

Pycnochromis delta

Pycnochromis delta, known as the Deep Reef Chromis, is a small damselfish found in the Indo-West Pacific region. This species inhabits steep outer reef slopes rich in coral growth, ranging from the Maldives and Christmas Island to Fiji, and as far south as Vanuatu. It has been recently recorded in Tonga. Divers can expect to encounter this fish at depths between 10 and 80 meters, though it is most commonly found between 25 and 80 meters. The Deep Reef Chromis is diurnal and typically seen either alone or in small groups, often near the entrance or ceiling of large caves where it remains close to shelter. The Deep Reef Chromis reaches a maximum length of about 7 cm. It is characterized by a body that is short and deep, with a compressed cross-section. The species has 12 dorsal spines and 12 to 14 dorsal soft rays, along with 2 anal spines and 12 to 14 anal soft rays. Reproduction in the Deep Reef Chromis is oviparous, with distinct pairing during the breeding season. The eggs are demersal, adhering to the substrate, and the males play a role in guarding and aerating them. The conservation status of this species is listed as Least Concern.