The Black-Tailed Dascyllus is commonly named as Blacktail Damsel, Black tail Humbug, Black-tail Humbug, Blacktail Humbug, Black-tail Dascyllus, Black-tailed Footballer, Four Striped Damselfish, and Fourstripe Damselfish. They are found in the Western Pacific, from Sumatra to Vanuatu and northwards to the Ryukyu Islands of Japan. This species can also be found Southwards, down to New Caledonia and Tonga. The Black-Tailed Dascyllus is a member of the Pomacentridae family. In appearance, they features a total of four blacks bars along with three white bars and white spot above its lip. The Black-Tailed Dascyllus usually grows up to a maximum size of 3 inches in length and must be kept at a minimum tank size of 30 gallons. They are reef safe and must be kept at a maintained water conditions ranging between 72-78ø F at a pH level between 8.1-8.4. The recommended salinity of water ranges between 1.020-1.025. The Black-Tailed Dascyllus is a great starter fish for a starter marine aquarist as they need a very moderate care level. The Black-Tailed Dascyllus is omnivorous in diet and usually feeds on all kinds of live, frozen and flake foods and algae. This species also readily consumes finely chopped meaty foods. It is recommended to feed the Black-Tailed Dascyllus fish in small amounts several times a day. This species is usually aggressive in temperament, especially as they grow older. Hence, it is better when they are kept in a community tank with other aggressive fishes. However, the Black-Tailed Dascyllus do not harm any invertebrates or cause any kind of destruction in the tank.