Discourage problematic parasites with Microbe-Lift Parazoryne Parastic Disease Water Conditioner. This all-natural formula supports your ailing fish’s immune system while protecting his aquatic ecosystem. While parasites naturally live in low numbers on your fishy friend， increasing stress levels can affect his ability to fight off parasitic infections. Your fish may have a parasitic infection if he displays symptoms such as flashing， heavy breathing， lethargy， milky skin or white spots. Help him return to calm waters with this unique expellant designed to fight against Chilodonella， Costia， flukes (gill and skin)， Oodinium， Trichodina and white spots.