Avg. Max Size
Minimum Tank Size
A Chromis should be housed in a 10 gallon or larger aquarium with plenty of loose coral rubble, as well as ample swimming room with a sand bottom for burrowing. It will try to jump out of the aquarium or other small opening, so a tight-fitting lid is required. Rarely will it become aggressive towards other fish, but will fight with its own kind unless they are a mated pair.