Cecil, this is my 2nd spring as a pondmeister and have seen the same thing, only last year it was 10 times worse due to extremely clear water, thanks to a neighbor who was sneaking in copper sulfate, but this year the algae returned in early march, and is totally gone now. My bloom has kicked in very nicely and I haven't done a thing to the lake. The neighbor was told to stay away from my lake and I am very pleased with the way things are going now.
