Common name: Black-axil chromis
General information
The Black Axil Chromis, Chromis atripectoralis, is a small and peaceful reef fish known for its striking blue-green coloration and distinctive black spot at the base of its pectoral fins. This species is a member of the Pomacentridae family, which includes damselfish and clownfish. They are a schooling species in the wild and can add a dynamic element to a home aquarium with their active swimming behavior.
Details
- Recommended minimum tank volume
- 75 liter (20 gallons)
- Salinity
- S.G. 1.020 to 1.025
- Temperature
- 24 to 28 °C (75 to 82 °F)
- Acidity
- pH 8 to 8.4
- Average size
- 10 cm (4″)
- Care level
- Easy Hardy and easy for beginners
- Diet
- Omnivore Flakes, pellets, and frozen foods
- Social
- School Best in groups of 5 or more
- Reefsafe
- Yes
- Aggression
- Peaceful
- Captive bred
- Yes Available as captive-bred
Taxonomy
- KingdomAnimalsAnimalia
- PhylumChordatesChordata
- ClassRay-finned FishesActinopterygii
- OrderPerch-like FishesPerciformes
- FamilyDamselfishPomacentridae
- GenusChromisChromis
- SpeciesBlack-axil chromisChromis atripectoralis Welander & Schultz, 1951
Care
Black Axil Chromis are hardy and adaptable, making them suitable for both novice and experienced aquarists. They thrive in well-established aquariums with stable water conditions and plenty of swimming space. A tank with live rock formations for hiding and foraging will mimic their natural habitat. They are omnivorous and will accept a variety of foods, including flake, pellet, and frozen preparations.
Reproduction
In the wild, Black Axil Chromis are known to spawn in groups, with females releasing eggs into the water column to be fertilized by males. In the aquarium, breeding can occur if a group is kept, but raising the larvae can be challenging due to their small size and specific feeding requirements.
Habitat
Black Axil Chromis are found in the Indo-Pacific region, from the Red Sea and East Africa to the central Pacific. They prefer shallow, clear waters of lagoons and outer reef slopes where they form large aggregations above staghorn corals and other branching corals.