Bluestreak cleaner wrasse
Wikipedia.org
Like other cleaner wrasses, it eats parasites and dead tissue off larger fishes' skin in a mutualist relationship that provides food and protection for th READ MORE http://en.wikipedia.org/wiki/Bluestreak_cleaner_wrasse
World of Copepods,
Department of Invertebrate Zoology,
Smithsonian Museum of Natural History,
A good description of what copepods are, pictures, and links to other resources. READ MORE http://invertebrates.si.edu/copepod/