I currently have a parasitic predatory isopod problem. There seems to be very few options in erradicating these nasty creatures, the only option I seem to have left is waiting for them to kill all the fish (tried removing the fish, failed miserably) and then let them starve. The following is a portion of an article I found does anybody have experience with wrasses eating these things or am I just adding another fish to it's demise. "Food habit data is available for two species. The eightline wrasse (Pseudocheilinus octotaenia) feeds primarily on small crabs and other crustaceans, mollusks, tiny sea urchins and fish eggs. The more diminutive sixline wrasse (Pseudocheilinus hexataenia) feeds heavily on small benthic crustaceans (e.g., shrimp and isopods), but it also feeds on foraminiferans (which are minute, shelled protozoa). It may also serve as a facultative cleaner, nipping parasitic isopods and copepods off of the fins and bodies of other fishes. I have seen P. hexataenia clean the giant moray eel (Gymnothorax javanica) in the Red Sea and have seen them do this in captivity on a number of occasions. The Pseudocheilinus spp. will also eat zooplankton." Desprate thanks.