Dascyllus reticulatus

Dascyllus reticulatus, known commonly as the reticulate dascyllus or two-stripe damselfish among other vernacular names, is a species of marine fish in the family Pomacentridae.

Reticulate dascyllus is widespread throughout the tropical waters of the central Indo-Pacific region.

In captivity, it is known among aquarium owners for its hardiness, and is thus often recommended to novice saltwater aquarium owners.

Description
Dascyllus reticulatus is a small marine fish that reaches up to 9 cm in length. It is grey, with two vertical stripes and a blue-green tail.

Behavior
Dascyllus reticulatus is an aggressive fish, and will often harass similarly sized fish. It is also territorial with members of its own species, and (in an aquarium context) with new additions to a tank, but does not harm corals or invertebrates.