( Chrysiptera cyanea ): Stunningly bright blue, but males are notoriously feisty and fiercely defend established territories.
( Chromis viridis ): Peaceful open-water swimmers that do best in schools of 6 or more. damselfish
( Dascyllus species): Hardy and active, but known to dominate rock formations aggressively as they mature. The "Avoid" List (Highly Aggressive) ( Chrysiptera cyanea ): Stunningly bright blue, but