Pomacentridae is the family name of the small and brightly fish, the damselfish that presence abudantly around Kapas reefs. There are about 335 different species from 28 genera of which most are 'herbivores' that feed on coral algae. But they can also prey on tiny invertebrates. They are commonly found in lagoon reefs and prefers small patch reefs with rubble substrates or sand. Despite their small body, they tend to be territorial and can be aggressive, especially the male during defending their territory.
This behavior will allow thick algal growth that provide the, a primary food source. They have an oviparous reproduction, where their eggs are demersal and cohere to the substrate. Damselfishes are also popular as an aquarium fish. There are also people who consume damselfishes, especially some areas bordering the Indian Ocean, but pomacentrids are not generally being eaten.