[Eugeneg]

Quote: Originally Posted by dcny See if you can add some aeration, perhaps from a windmill or something. In addition to the oxygenation benefits, it'll also provide some water movement.

The problem with windmills is that when you most need oxygenation at night or hot stll day they do not work neither is there much supply especially if the pond is deep .
Here is what I do ;
Air Stones and Oxegenationfor Your Pond CONSTRUCTION
Regards
Eugene