Water conditioner against fungal infections (Mycosis) Effectively combats infections by fungi (e.g. Saprolegnia) on fish and spawn in freshwater. The water conditioner can also be used in case of external injuries as well as against skin and gill flukes and Transversotrema. Invertebrates do not tolerate the treatment. Additional use of the care product sera ectopur supports effective treatment. Too low water temperatures support the growth of fungi.