The Outlaw Ocean - The Next Frontier

From page 224:

…One area served as a “cleaning station” where fish would visit to rid themselves of parasites. Cleaners tend to be colorful and boldly patterned to attract potential customers. For more aggressive advertising, the cleaners sometimes wave antennae or undulate their bodies… “Even the most voracious predators are welcome”, Hocevar explained over the intercom. The cleaners would swim and crawl into their mouths and feed on the parasites and dead skin… Hocevar said some species at feeding stations pretended to be cleaners, only to take bites out of the soft tissue of the trusting fish that invited them in. Predators could be just as deceitful, he added. Occasionally they gulp down the hardworking cleaners. “It’s a jungle down here,” he said, smiling to me through the glass.

Coral Reef Video

At 1:00 you can see the mutualistic relationship between the Bubble Tip Anemone and the Clown Fish. At 3:19 you can see the mutualistic relationship between the White Tip Reef Shark and the Blue Streak Wrasse that cleans the shark’s dead skin. At 3:50 you can see the parasitic relationship between the Saber-tooth Blenny and would-be clients. At 4:15 you can see a remora fish clinging to the side of a whale shark so it can eat the shark’s leftovers. (Commensal relationship)

Coral Reef Cleaners