 | Algae; Autotrophs; Carnivorous Taxa; Coelenterata; Ecology; Food Chains; Herbivorous Taxa; Pisces; Reefs | One of the main reasons why coral reefs attract so many diverse organisms is because of the abundant food supply that the reef provides. The small fish (herbivores) that feed on the algae (autotrophs) within the coral, attract larger fish (primary carnivores), such as those in this slide. |