Cheilodipterus quinquelineatus

Cheilodipterus quinquelineatus, commonly known as the Five-lined cardinalfish, is a friendly schooling fish which looks very similar to the smaller Ostorhinchus compressus, which it does live together with sometimes. They have five very dark, almost black horizontal lines and a yellow patch at the base of the caudal fin with a black spot in it. Like O. compressus, it sometimes hides between Diadema needles.

This fish can be kept singly, or in small to large aggregations, depending on your tank size.