Parasitic tongue-biter isopods are small crustaceans that attach to and eventually replace a fish’s tongue. Anemonefish are common hosts for these isopods, and we often see affected fish sucking on the anemone tentacles. We’re not sure why, perhaps it’s an attempt to kill the isopod or to numb their mouths to provide pain relief. Shot in Lembeh Strait, Indonesia in September 2013.
