Basics Scientific Name: Chaetodon collare Family: Chaetodontidae Origin: Maldives, Philippines, Indonesia, Sri Lanka Quick Facts Care Level: Moderate Temperament: Peaceful Lifespan: 5-7 years Reef Compatible: With Caution Water Conditions: 72-78° F, dKH 8-12, pH 8.1-8.4, sg 1.020-1.025 Maximum Size: 7" Diet: Carnivore Minimum Tank Size: 60 for single fish, 125 for pair Overview The Pakistan Butterflyfish is also commonly called the Redtail Butterflyfish, and comes in varying shades of brown to black with white bands on its face. It possesses a bright red tail fin from which it gets its other common name. In the wild, it feeds off of coral polyps, so caution should be exercised when adding it to a reef tank, as it may nibble at invertebrates. Its diet should consist of various frozen carnivore foods, and meeting it's dietary needs will reduce the chance of it damaging a reef. They can be kept in pairs that should be introduced to the tank at the same time, or with other peaceful community fish but not other butterflies.