The value of the ecosystem is quite high in the overall geographic context. There are several functions of the ecosystem that carries a lot of value for the environment. One of the functions that have been selected for the topic is a coral reef. Coral reefs are physical formations that mainly focus on corals that are little invertebrate sea species. A single coral, even referred as a polyp that has a cylindrical shape with an exoskeleton. The exoskeletons provide a single polyp that has a hard external surface and soft inner surface. On the chemical basis, ...