I stocked 100 trout in the pond the end of Oct. '09. I'm using an Aqua Pro ADF-75 feeder, dispersing time set at 1 second. A 50# bag of AM600 lasts 2 months at that feed rate. The feeder was set to throw the feed in the open water that was created by having a Vertex diffuser suspended in 10' of water, at 5' depth. I kept the aerator on 24/7 and the trout didn't seem to mind. They'd jump completely out of the water hitting the floating pellets. The food was 95% (or so) consumed within 20 minutes. I had the feeder set to feed at high noon.