[leebca]

The original post was actually taken out of context. It was a post to remove copper from a tank that was used to treat fish with a copper treatment. The procedure is one that most advanced aquarists use to rid a tank of residual copper.

I agree it's totally overkill for just a cleaning procedure. I actually recommend three different cleaning procedures depending upon what it is that is or was in the tank. The full recommended three procedures were given here: Tank Cleanup Procedures