Common name: Blue star

Scientific name: Pomacentrus alleni Burgess, 1981
The Andaman damsel (Pomacentrus alleni).Pomacentrus alleni,  Damselfish
Allen's or Neon Damselfish (Pomacentrus alleni) Thailand underwaterYellow tail damsel fish

General information

Allen's Damselfish, scientifically known as Pomacentrus alleni, is a small and vibrant member of the Pomacentridae family. This species is admired for its striking blue coloration and active demeanor. It is a hardy fish that adapts well to life in captivity, making it a suitable choice for both novice and experienced aquarists.

Details

Recommended minimum tank volume
100 liter (26 gallons)
Salinity
S.G. 1.020 to 1.025
Temperature
24 to 27 °C (75 to 81 °F)
Acidity
pH 8.1 to 8.4
Average size
8 cm (3″)
Care level
Moderate to easy Adaptable, but needs hiding spots
Diet
Omnivore Varied diet, accepts flakes and frozen
Social
Harem Best in groups, with more females
Reefsafe
Yes
Aggression
Semi aggresive May be territorial
Captive bred
Yes Bred in home aquariums

Taxonomy

  1. Kingdom
    Animals
    Animalia
  2. Phylum
    Chordates
    Chordata
  3. Class
    Ray-finned Fishes
    Actinopterygii
  4. Order
    Perch-like Fishes
    Perciformes
  5. Family
    Damselfish
    Pomacentridae
  6. Genus
    Damselfish
    Pomacentrus
  7. Species
    Blue star
    Pomacentrus alleni Burgess, 1981

Care

Allen's Damselfish requires an aquarium with plenty of live rock for hiding and territorial establishment. They are omnivorous and will accept a variety of foods including frozen, flake, and live offerings. It's important to maintain high water quality and stable parameters to keep these fish healthy.

Reproduction

In the wild, Allen's Damselfish are known to be egg-layers, with the male guarding and tending to the eggs until they hatch. Breeding in captivity can be challenging but is possible with the right conditions and a well-established pair.

Habitat

Native to the Western Pacific, Allen's Damselfish can be found in coral-rich areas and lagoons. They prefer environments with strong water movement and are typically found at depths where reef structures provide ample shelter and feeding opportunities.