Thanks for your discouraging words...but no complaints yet. There are only 14 of us and they are pretty forgiving. Especially since the lake looks beautiful right now and for most of the day. The problem only comes up in the morning. I don't know what could be decomposing, since there was nothing in the water when I fertilized. I am going to turn off the aeration tonight and see if that helps. If anyone has any thing non-condescending to say, i would appreciate it. Sorry I am not an expert. I thought this forum was for everyone.