Rich,
I would just kill to have the water quality that shows in your pond pictures. As I mentioned in another post, this is the second year of my pond and I am dealing with the pea green water issue at the moment. I am only beginning to figure out what to do to correct this and one step looks possibly to be adding some anacharis to the pond. The pond was great last season, but I am really struggling with the water clarity this year.
Also, how expensive is it to run the heaters and thermostats that you use through the winter? I am in Michigan and was really intrigued by your setup.

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Barefoot Malithorne