Damselfishes or anemonefishes are members of the Pomacentridae family. They are found in all tropical seas, mainly the Indo-Pacific oceans. They are extremely variable in color with many species exhibiting shades of brown, black, blue, green, red, and yellow; a dark spot or ocellus often present on dorsal fin, particularly in juvenile stages.
Damselfishes inhabit coral and rocky reefs, but also common in other shallow-water habitats. Their feeding habits are variable. The larger species tend to feed mainly on algae, many others are omnivorous, consuming algae and small invertebrates, while others rely on planktonic items. They are rarely caught for food. The primary fishery value of damselfishes is through the ornamental marine aquarium trade.
There are 29 genera and about 385 species of pomacentrids worldwide. About 78 species are found in Malaysia waters.