Care Level: Easy

Temperament: Semi-Aggressive

Reef Compatible: Yes

General Description: The Neon Allen’s Damsel, also known as the Neon Damsel, Allen’s Damsel, Alleni Damsel, or Blue Star Damsel, are found in the Andaman Sea west of Myanmar and Fiji. Named after the ichthyologist Dr. Gerald Allen who is the world’s authority on damselfish, the Allen’s damsel occasionally makes it way into the aquarium trade. It may get confused with the Blue Gold Damsel (Pomacentrus coelestis) which also shares the common name, Neon Damsel, however the Allen’s damsel only has yellow on its anal fin. The Allen’s damsel also is an overall metallic blue-green color rather than just blue, unmistakably making it the most striking of all the Pomacentrus damselfish. Allen’s damsels are not as robust as some of their counterparts, so we would not recommend them for biologically immature aquariums. It is best practice to keep damsels in small-medium sized groups (6+ individuals) to help avoid nippy behavior toward other tank mates, but such behaviors are complex based on various environmental and individual factors. While some species in the Pomacentrus genus are known to be a bit more aggressive, in our experience the Allen’s damsel is less aggressive. An adult Allen’s damsel can reach a size of approximately 3″.

Diet Requirements: In the wild damselfish are omnivorous. A varied diet of high quality algae, proteins, pellets, flakes, and enriched frozen foods are important for best coloration, immune function and optimal health. Damsels are some of the unfussiest of saltwater livestock when it comes to feeding.

Care Requirements: A minimum 75 gallon aquarium is ideal for a group of Allen’s damsels. A set-up with live rock is best for the health of the aquarium, and these damselfish will appreciate crevices to swim through and take refuge. We do not recommend adding Allen’s damsels into a biologically immature (uncycled) aquarium. At Aquatics Unlimited, we try to offer damselfish that have a temperament which is generally compatible in an array of set-ups. While the Allen’s damsel will typically ignore most other fish, observation after introduction is still warranted. Allen’s damsels should not be housed with more aggressive damsel species, such as those from the Abudefduf, Amblyglyphidodon, Dascyllus, Microspathodon, Neoglyphidodon, and Stegastes genera. Allen’s damsels are reef safe; they will not bother any coral or invertebrate. Recommended water conditions, 72-78° F, KH 8-12, pH 8.1-8.4, salinity 1.020-1.025.

Purchase Size: Medium: 1-3/4″ to 2-1/2″

Note: Your item may not look identical to the image provided due to variation within species. Purchase sizes are approximate.