Anemonefish

Clownfish, or anemonefish, are damselfishes that form symbiotic relationships with sea anemones. Many people mistakenly believe that clownfish are immune to the stings of the anemone, but this isn't true. A substance in their external mucus coating seems to suppress the anemone's stinging ability, and the unique swimming patterns of the fish also seems to lull the anemone. Both these factors actually require a period of acclimatization, which is why clownfish stick with "their" anemone. While the anemonefish clearly benefits from the anemone's protection, it's not clear that the host actually benefits from the relationship.

Black Anemonefish	Clark's Anemonefish	False Clown Anemonefish
Pink Anemonefish	Three-spot Dascyllus

Please note: Identification of fish, corals, etc. is a tricky business. It's entirely possible that I've incorrectly identified a photo I've taken. If you spot an error, please contact me so I can correct it and improve this resource.