Use to prevent the growth of unsightly green algae and blanket weed. Harmless to all other forms of life in the pond. 500ml treats 6247 gallons once. 250ml treats 3124 gallons once. Not only does the food provide the beneficial probiotic bacteria for Koi but it contains a food for the beneficial bacteria too in the form of a prebiotic (fructo-oligosaccharide).
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