Basics Scientific Name: Chrysiptera parasema Family: Pomacentridae Origin: Indo Pacific, Red Sea, Fiji, Indonesia, Africa, Australia Quick Facts Care Level: Easy Temperament: Semi-Aggressive Lifespan: 5 years, possibly longer Reef Compatible: Yes Water Conditions: 72-78° F, dKH 8-12, pH 8.1-8.4, sg 1.020-1.025 Maximum Size: 2 1/2-3" Diet: Omnivore Minimum Tank Size: 30 gallons Overview Damsels will do fine in a reef tank or a community fish tank, but it can be very aggressive and territorial so it should be added after the other fish in the tank and should only be housed with fish that are similar in size and temperament that can hold their own against it. It should have a hiding place and it's own territory within the tank. It is a forgiving, hardy fish and perfect for beginners.