I new I forgot to mention something!!!

The pond is 4 years old and has minor sediment on the bottom.

My schedual for startup was 15mins 1st day, then doubling the time untill it was running 24/7.

I saw no effects of lack of oxygen durring this time or even any real stirup of the bottom material. The first time I turned them on I saw some stuff come up with the bubbles but that was probably due to how I put them in. I had them going on shore and pulled from the other side of the pond with my fishing rod/6lbs test line. When the stones where in the center where I wanted them I just did a quick snap of the line freeing the stones on the bottom.

Ryan