Specifically designed for ponds stocked with Koi Carp, fitted with bottom drains.The formula consists of a 100% strain of the Natural bacterial suppressant for Blanket Weed (String Algae) and Green Water (Single-celled Algae).Treats up to 12,500 litres (2,780Gallons) of pond water.Viresco treatment will also promote resistance to fish disease and can be used on small ponds or larger lake waters (on request).Note: Needs sufficient supply of oxygen to enable effective & prolonged growth of bacteria and to protect fish stock. Please view our Pond & Lake Aeratorsfor suitable oxygenators, if required.
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