Rinsing OK for empty tank that had previous cupramine treatment?

[Lance]

Tony, apparently the copper in Cupramine is non-leaching. When I had the Ich/Marine Velvet breakout I had the fish in a spare tank that was lent to me. I read up on Cupramine and it is supposedly safe. This tank has since been used with no problems. I can't remember where I found the info, but it made me rest easier as I didn't want to ruin the tank for future use.