Microbe-Lift Autumn and Winter Prep Pond Water TreatmentMicrobe Lift Autumn Winter Prep helps accelerate the decomposition of leaves, sediment and other organic matter during the fall and winter months. It will also jump start your pond to a healthier environment in the spring. A two part system of liquid bacteria and dry, water soluble packets containing a blend of cellulose enzymes Continues To Provide Sustained Biological Activity Even In Water Temperatures Under 40 Degree Fahrenheit If Frozen, Bacteria