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Old 06/18/2020, 09:27 PM   #2
bertoni
RC Mod
 
Join Date: Mar 2002
Location: Mountain View, CA, USA
Posts: 88,616
I suspect that the copper adsorbed onto the rock and sand fairly quickly, but it's hard to be sure.

Running CupraSorb and carbon might help with mopping up any leftover carbon, but I wouldn't put corals or other invertebrates back into the tank.

You could give the rock an acid bath at some point, if you want to reuse it, but I'd ditch the sand. It has too much surface area to be able to remove the copper in any practical way.


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