Maybe, one good thing I did (not knowing any better), I left the skimmer running during time I had added the Copper. Hopefully, it was pulling most of the Copper out. Yesterday I went over to Gainesville and picked up some "Kick-Ich" to start treating tank.
At least, the Tang and Clown are eating good and swimming around the tank as if nothing is wrong. I can't see any spots on the Clown, but the Tang still looks pretty awful. The Angel looks some better, but is hiding in its cave most of the time. BTW, the Turbo Snail I have in the tank is still moving about. Hopefully, this is a good sign.
I'm still discouraged, but hanging in.