
Relationships
Symbiotic Relationship
Clownfish live in a symbiotic relationship with certain anemones. This means they benefit from living with the sea anemone, and the sea anemone benefits from the presence of the clownfish. They are the only fish that are able to live in sea anemones and not get stung by their tentacles. Clownfish are very active fish and are extremely aggressive. Because they are quite active, the clownfish are thought to be "clowning around". They defend their territory and the sea anemone that they live in. Clownfish eat the leftovers from fish on the anemone and algae. The leftovers include copepods, isopods and zooplankton.

Food Web
​The ecosystem of the Great Barrier Reef is a delicate and fragile balance, with a food chain that has multiple levels in which every part is reliant on everything else. From the largest apex predators such as the White-tipped Reef Shark all the way down to microscopic organisms called Phytoplankton, no one marine creature could exist without another, and this is reflected in that if one life form becomes endangered, the rest of the reef suffers. Below is a visual diagram style representation of the food web of the Great Barrier reef featuring some of the core marine animals that can be found in its waters that provides a basic overview, with the arrows pointing in the direction of one animal that eats another.
