Here in Michigan we already have close to 8" on our neighboring lakes and temperatures have been in the single digits, so ice on your patio pond is inevitable. One solution later in the fall of the year would be to transfer aquatic plants and fish indoors, drain the pond and remove the pump. Some people might not have that luxury and decide to just keep it running. If this is your only option, here are a few tips to help you prepare.
Tips For Keeping Your Patio Pond Running Till Spring
2. Remove any annual (tropical) aquatic plants from the pond.
3. Remove your fountain pump and hardware, clean them up and store in an area that won't freeze. These pumps could freeze and become inoperable come next spring.
4. To protect your fish you'll need to add aeration (oxygen) to the pond. An aerator helps keep a hole open for toxic gasses to escape during the winter months. But even with the most aggressive aerators, the open hole could still freeze closed.
5. Keep a deicer on hand to aid in keeping the hole in the ice open. NEVER POUND OR BREAK THE ICE!!!! This sends shock waves down through the water and will effect the overall health of your fish.