Is Virkon® Aquatic a medicine?
No! Emphatically not. It will not treat fish or shellfish, but it will disinfect hard surfaces, boots, clothing etc , provided they are clean. If used in a fine spray into the atmosphere, a technique known as “Virkon fogging” it will greatly reduce or eliminate airborne pathogens and also percolate through rafters or other areas of buildings otherwise not possible to access.
In addition, if added to the water in which fish are swimming, at high dilution (ca 2ppm), on a continuous basis, it will greatly reduce the level of bacteria, viruses and certain parasites which can survive in that water column and thus prevent or reduce levels of potential infection. But it does this by removing them from the WATER not the fish. It is not likely to have any significant direct effect, good or bad on the fish themselves, at these concentrations. Thus no medicinal claims are made by the manufacturer, DuPont, by Bradan Ltd or by Vetark.