I am planning on building a RAISED pond in my new backyard where there is plenty of shade (roughly 3-4 hours of exposed sunlight a day). I'm planning on building it before the winter and having it set up for early summer. A long time from now but this question has always concerned me. Is it fully possible to keep a raised pond insulated enough to have it not freeze over in the winter? I was thinking a pond liner with foam insulation under it with plywood with more foam insulation and another plywood on top of that.
Can this do ANYTHING??? or should i just bring in my livestock every winter?