I have been told by some knowledgeable people who aerate in my area to place my diffusers in shallow areas (3 to 4 feet in a 15 ft deep pond). Was also advised not to destratify the pond. Their reasoning is due to us only being at pond in remote area maybe once every two weeks, if the aerator loses power or breaks down there would be less chance of a fish kill. So the way I take it is totally destratifying pond is good for both pond and fish but serious problems could occur if pump breaks down? Just wondering what you guys think of this. Pond is in eastern iowa, one acre, in timber with a lot of leaves falling in. Max depth is 15ft.