We have about a half acre pond that's been there for several years now. I'm not sure there's enough coverage in the pond for the fish. The pond is basically a square with a bush in three of the corners, but that's all that can be seen from the surface. There aren't that many trees around the pond either, so I can't imagine there being many logs or anything under the water. How can I tell if there's enough coverage? How much should there be?
