The OASE SwimSkim floating skimmer is a perfect addition or retrofit to any pond. This enables fast, simple and safe removal of coarse debris that falls into your pond. In addition to removing leaves and surface dust, the SwimSkim also functions as a biological filter and air injector in a single device. The air injector - water circulation means that the SwimSkim remains protected from being frozen into the pond during the winter months. This is a complete unit. There is nothing else to buy.
After the water temperature in your pond drops to 60 degrees or below, you should decrease the amount of food given to your fish and feed them no more than once a day using a food designed for cool weather feeding.