To control string algae in your pond you cannot find a better product than Pond Balance Algae Control.
Pond Balance is a widely accepted pond treatment for reducing organic debris. Unbalanced pond condition may contribute to excess organic debris in pond, streams, pump intakes and filters. It keeps certain nutrients at bay. This helps provide a healthy and beautiful pond without harm to plants, fish or bacteria.
Pour product directly into water, preferably at the beginning of your stream or waterfall.
1 bag treats 1200 gallon pond 3 times.