I'm sticking with cotton wood seed that has sunk and floats suspended until it's saturated enough and than rolls along the bottom and collects that nice puke green look. If you fish the faster water there is a minimal amount of it . The water temps last time I checked were 48 - 49 degrees quite a bit colder than July temps. Last year was the first year it was a real pain in the a** on the Cow that I can recall.