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BiologyCommonly found along sea walls and pilings, in harbors, and coral reefs. A nocturnal species, it remains hidden in cracks and crevices during the day (Ref. 9626). Reaches depths of more than 100 m (Ref. 9626). Males with eggs have been spotted in Bahamas in June and July (Ref. 26938). Most common cardinalfish in the aquarium trade.