The Percula Clownfish (Amphiprion percula), or anenome fish, is one of the most common reef fish found in tropical waters. It is unique in that it forms a symbiotic relationship with a host anenome and can be found weaving in and out the anenome’s tentacles without being stung. The clownfish’s immunity derives from a coating of mucus which covers its body. This mucus is transfered to the hosts tentacles and affords the fish complete protection. The fish will remain with the same anenome indefinitely and as the host is sedentary, you can be sure that you will likely find the same fish inhabiting it on return visits.