Morenicol Lernex has been developed for the treatment of  resistant Gill flukes, Skin Flukes & worms in ornamental fish. Lernex-Pro is based on the latest scientific knowledge and contains high-quality anti-worm agents, such as Nitroscanate and Flubendazole, to which resistance has not yet been built up. Lernex-Pro is therefore effective in the treatment of resistant skin worms (Gyrodactylus) and gill worms (Dactylogyrus). The presence of these parasites can only be determined under the microscope.