IMO the srac.tamu FactSheet noted above is outdated and was based on too few old studies that examined copper effects on larger common test invertebrates and fish.
Bill I agree SRAC fact sheets can become out dated. However this one contains the following
"SRAC fact sheets are reviewed annually by the Publications, Videos and Computer Software Steering Committee. Fact sheets are revised as
new knowledge becomes available. Fact sheets that have not been revised are considered to reflect the current state of knowledge."
SRAC Publication No. 361
February 2013
Revision "
I do agree there are many unknowns as to CS. Some of my experience does not match exactly what the FS says.
.gif)
