Thread: what silicones are safe to use in a sump??
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Old 01/11/2008, 11:15 PM
drparker drparker is offline
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Join Date: Feb 2006
Location: Chicago area
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Check what it says for content 100% silicone is 100% silicone does not have to be Aquarium special silicone. I? can't remember which number on the package, there are at least 4 different tubes and only one of them is listed at 100%