Neon Damselfish



The Neon Damselfish is also known as Allen's Damselfish and Allen's Pomacentrus. The name is a tribute to Allen, Dr. Gerald Allen, the scientist who is well known in the world on damselfishes. The slender fish is neon blue with a blending of yellow towards the body's bottom and the anterior fin. The Pomacentrus coelestis species, which is similar to the other fish, could also be referred to as the Neon Damselfish. It is considered to be a moderately aggressive species of fish that needs hiding spots in a 20 gallon or bigger aquarium. The Neon Damselfish diet must consist of a wide range of meaty food items, prepared herbivore meals, as well as flaked food items. Approximate Purchase Size: 1" to 1-1/2"      
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Neon Damselfish Information Neon Damselfish (Pomacentrus alleni) is a vibrant species of Damselfish that displays neon blue, green, and yellowish/orange colors. Although they are considered to be a species that is easy to maintain in the aquarium, however, they only show their full spectrum of color when they are satisfied with the conditions of the tank and their tankmates. Neon Damselfish's colors appear dull when conditions in the water aren't ideal or they're getting spooked by aggressive tankmates. Although it is a Damselfish species, Neon Damsel is more like the Chromis species than the standard Damselfish species. They are docile and shouldn't have any issues coexisting peacefully with other reef species. A group of Neon Damselfish is an ideal part of a reef or a FOWLR aquarium that has other calm to semi-aggressive tank companions.  

Neon Damselfish Diet

Neon Damselfish is an omnivore. They must be a diverse diet that includes live, frozen, or freeze-dried, as well as high in vitamin content foods such as Mysis Shrimp, brine shrimp the cyclop-eeze, formula I and II. As well as other food items that are prepared, like Spirulina-based carnivore and herbivore pellets and flakes.    
Large, Medium, Small
6 lbs


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Frequently Asked Questions
Is hiring a professional necessary to set up a saltwater aquarium?

As a general rule, a larger custom aquarium might require installation by a professional. However, a kit from our online fish store is relatively affordable and beginner friendly. That means you should have no problem setting it up yourself.

Which saltwater aquarium fish should you choose when starting out?

Consider a yellow tang fish. This popular saltwater aquarium fish does a great job of coexisting with other types of fish you’ll find in our online fish store.

How does a saltwater aquarium differ from a freshwater one?

Saltwater aquariums require a bit more maintenance and monitoring than freshwater tanks. Different fish require different levels of salinity, pH tolerances, and temperature requirements. They also require specialized pumps, filters, and other equipment that can handle salt. We can guide you through everything you need to know to set up a healthy, thriving reef tank.

Do fish in a saltwater aquarium swim in a school?

That depends on the species. However, if it’s a fish that swims in a school in the wild, they’ll do the same in an aquarium. Some fish that swim in schools include the green and blue chromis, cardinalfish, and dartfish, for example. When ordering from an online fish store, make sure you do your research on how specific fish species behave to ensure they’ll school (or at least coexist) with your current fish.

Is the effort required to maintain a saltwater aquarium worth it?

Yes! Many aquarists dream of owning thriving saltwater aquariums. You have a tiny piece of the ocean in your home, featuring magical and exotic fish that can only survive in saltwater.