In the wild, this fish can be found in shoals over large Acropora colonies. A popular fish in home aquaria. Active and hardy. Often kept in groups of 9 or more. Provide plenty of live rock and ample hiding places. As the chromis is in the same family as damsels, it may act aggressive towards other damsels with the same body shape. Maximum Length: 4 in. Care Level: Easy Family: Pomacentridae Reef Compatibility: Reef safe. Minimum Aquarium Size: 30 gallons. Range: Indo-Pacific: Red Sea, Ryukyu Islands, New Caledonia Diet: Omnivore Water Conditions: 74-80 F; sg 1.020-1.025; pH 8.1-8.4