copper question

[Myka]

Originally Posted by michika

I've always heard and practiced the belief that copper is absorbed into the silicone. I've always stripped out the silicone on second hand tanks just in case they've had copper in them before.

Me too. I just use an exacto blade and trim it out, then reapply the silicone. I've only done this on sumps though, not displays. Not that that matters much I would think.