Provide the Required Oxygen to Your Pond

Use a pond de-icer to heat a small opening in the top of your pond where it normally would freeze. A de-icer will keep an area thawed in the pond, allowing the release of toxic gases from decomposing organic matter to escape and at the same time, allowing oxygen to enter your pond. Used primarily for ponds containing fish. The pond de-icers have automatic thermo-regulators inside and turn on when the water temperature hits 44F. The "heat" generated by the de-icer will keep an area of the pond's surface from freezing, allowing the toxic gases to escape and oxygen to enter.