The Barrier Reef Chromis (Chromis nitida) is a marine (saltwater) fish in the Pomacentridae family of damselfish. It is also called the Yellowback Puller or the Shining Puller.

The Barrier Reef Chromis has a yellowish-brown back, a separating dark stripe, and silvery sides and underbelly. The dark stripe is diagonal, starting at the eye and ending at the tail. It has one dorsal (back) fin. 

It measures about 9 centimetres (4 inches) in length. 

It is found in the waters off the eastern coast of Australia along the Great Barrier Reef. It prefers rocky coral reefs and estuaries. 

The Barrier Reef Chromis feeds on algae, zooplankton, and small invertebrates, such as octopus. 

It is a shoaling fish, living in large groups called shoals or schools. In the breeding season, it forms pairs. The female lays eggs on the ocean floor. The male guards the eggs and keeps them aerated by fanning them with his fins. 

Location of photographs: Aquarium de Paris-Cinéaqua, France

Photographer: Martina Nicolls

Martina Nicolls: SIMILAR BUT DIFFERENT IN THE ANIMAL KINGDOM