Should I use Viresco Aqua or Viresco Koi to remove blanketweed and algae bloom?
Where ponds have little or no organic waste, then the waste digester part of Viresco Aqua is somewhat superfluous. Our recommendation, therefore, is to use Viresco Koi. For all general garden ponds in which organic waste arises from fish excrement, from surplus food or from wind carried leaves and grasses, we recommend Viresco Aqua. If in doubt then use Viresco Aqua. How is Viresco applied? Viresco is a dry powder. We advise that the appropriate amount be mixed into water and allowed to stand for a few hours. The water should be taken from the pond. Ideally it should be mixed in the morning and applied to the pond in the evening. Also some air should be introduced into the solution via the use of an air stone or regular whisking. Never leave the solution for more than 24 hours before applying to the pond. How frequently should Viresco be used and how long does it last in the pond? Some of our customers make one application and then see no more blanketweed for over one full year. Others
