Pomacentrus coelestis

[1] It can grow to a maximum size of 9 centimetres (3.5 in) in length.

In the Indian Ocean, they are found in Sri Lanka, the Andaman Sea, Indonesia, and Australia.

Adults can grow to a maximum size of 9 centimetres (3.5 in).

This fish feeds on zooplankton and benthic algae.

[1] Juveniles school above soft corals while adults are found in small of large aggregations over their favorite parts of the reef.

Front view