A reef is primarily created through the accumulation of calcium carbonate produced by coral polyps, small marine animals that build their hard exoskeletons. As these polyps grow and reproduce, they form large colonies that contribute to the structure of the reef. Over time, additional organisms like algae and mollusks also contribute to the reef's development by adding more calcium carbonate. Environmental factors such as water temperature, salinity, and light availability play essential roles in the growth and sustainability of the reef ecosystem.
Reef of Death was created in 1998.
Reef HQ was created in 1987.
Reef Diver was created in 1983.
Reef Check was created in 1996.
Kingman Reef was created in 2001.
Reef Doctors was created in 2012.
Ray Reef was created in 2009.
Redbird Reef was created in 2001.
Bar Reef was created in 1992.
Beyond the Reef was created in 1949.
Brightness Reef was created in 1995-10.
Caribbean Reef Octopus was created in 1929.