Symbiotic Relationships
All clownfish are well known for their habit of using an anemone as a host for protection. Although this relationship was once considered to be commensalism, now it has been discovered that clownfish will use the anemone's stinging tentacles for protection, and in turn, the clownfish's fecal matter provides nutrients for the anemone. In addition, some clownfish will feed its anemone, further proving that this symbiosis is in fact mutualism.
In nature, the false percula clownfish will host Heteractis magnifica and Stichodactyla gigantea. However, in captivity in a reef aquarium, the false percula will host other species of anemone, including Entacmaea quadricolor. In addition, clownfish may adopt a surrogate host as opposed to an anemone, such as Euphyllia divisa, xenia coral, etc.
Read more about this topic: Ocellaris Clownfish