Common name: Nagasaki damsel

General information

The Nagasaki Damselfish, Pomacentrus nagasakiensis, is a small and colorful marine fish that is not as commonly found in the aquarium trade as other damselfish species. It is known for its vibrant blue coloration and peaceful temperament, making it a potential candidate for a community reef aquarium.

Native to the Western Pacific, particularly around Japan, this species is often found in shallow, coral-rich environments. It is a relatively hardy fish that can adapt to life in captivity if provided with the right conditions.

Care

Nagasaki Damselfish are relatively easy to care for, which makes them suitable for both beginner and experienced aquarists. They thrive in well-established aquariums with plenty of live rock for hiding and grazing. While they are omnivorous, a varied diet that includes both meaty foods and algae-based preparations will help maintain their health and coloration.

These fish are less aggressive than some other damselfish species, but they can become territorial, especially during breeding. It's important to monitor their behavior with tank mates and provide ample space for each individual to establish its own territory.

Reproduction

Like many damselfish, the Nagasaki Damselfish is an egg layer. They exhibit parental care, with the male typically guarding and tending to the eggs until they hatch. Breeding in captivity is possible but not commonly reported among hobbyists.

Habitat

In the wild, Pomacentrus nagasakiensis is typically found in coral reef environments, often in association with stony corals and other reef structures. They prefer areas with moderate to strong water movement and are usually observed at depths ranging from the shallows down to about 12 meters.

Their natural range includes the Western Pacific, with a notable presence around the southern Japanese islands and adjacent regions.