I use Methyl blue as a dip before I introduce a fish to the tank. It is what Bob Fenner recommends. They say that is is very gentle. I have used it with very good results.
I have never used copper based treatments. When I worked in the lfs, we used them and I never liked the way the fish...
Chip, the elegance is doing great. It is between 7-8 inches wide now. I put it in a 14 nano and it really took off. You can come by any time. Send me an email.