Hi! I'm from Pennsylvania, near Philadelphia. I have had my pond for 20 years and it has bee virtually trouble free. It is about 300 gallons and about 5' x 7' and 22" deep. The River Birches behind the pond were 9' tall when we installed the pond and planted the trees. Now they are taller than the house. We have been through a bunch of learning experiences. The first year, feeling sorry for the fish, I put in a cattle watering trough heater to keep the water warm for the fish. It was beautiful to see snow a foot high around the pond and a beautiful black steaming pond just off the patio. In January, paying the electric bill, I discovered I was paying about $100 per month to keep $15 worth of fish alive. I hit the internet and decided to let the fish hibernate as everybody suggested. They do just fine. We get frogs in the spring, and the occasional snake. A glass of cold crisp white wine and some cheese next to the pond on a hot summer evening is about the best place I can think of to be.