Water conditioner against the most common ornamental pond fish diseases Versatile water conditioner that is quickly and safely effective against almost all pathogens occurring in ponds. The treatment is effective against, among others, bacterial infections (e.g. Columnaris, Aeromonas, Pseudomonas, Erythrodermatitis, dropsy, fin and gill rot), infections by fungi (e.g. Saprolegnia), single celled skin parasites (e.g. Ichthyobodo, Ichthyophthirius, Chilodonella, Trichodina) as well as skin and gill flukes. It can also be used for disinfecting external injuries and furthermore prevents secondary infections.