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Old 01/03/2008, 02:18 PM
tspors tspors is offline
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Join Date: Sep 2007
Location: Appleton, WI. USA
Posts: 69
The amount if any copper in draino is so small there should not be a concern. I have since made a couple of calls and found draino is pretty pure in it's form. the 0.5ml used per injection breaks down fast and will not harm corals unles you spray it on them.
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