Common Name: Blue Reef Chromis, Blue Chromis

Scientific Name: Chromis Cyaneus

Reef Safe: Yes

Temperament: Peaceful

Care Level: Easy

Max Size:  5 inches

Appearance:

This chromis is darker blue in color with black edging around the fines and a black coloring on the head around the eyes.

Temperament

The Reef Chromis are a schooling fish and should be kept in numbers of between 6 and 10.  As chromis are closely related to the damselfish species, there can be slightly aggressive behavior observed between the reef chromis in an aquarium when they are establishing a “pecking order” among the school. This aggression can get bad at times but it typically will be short lived.

Environment

I would suggest nothing less than a 55 or 75 gallon tank as you would need to keep them in a school and they are very active fish.  Many hobbyists will use reef chromis as a dither fish to provide a lot of swimming activity in the aquarium making other shy fish feel more comfortable and safe in the aquarium.

Recommended water conditions:

Although these are very hardy fish, I would still refer you to the below article for the typical water conditions that reef chromis will do best in:

https://www.reefaquarium.com/2013/the-basics-of-marine-aquarium-water-parameters/

Diet

Reef Chromis are omnivores and will do best when offered a variety of meaty foods along with a mixture of different types of marine flakes and pellets.