Sentry AQ Mardel

Has anyone used Sentry AQ Mardel (coppersafe) to treat ick in their tanks? Its supposed to be for ick, velvet and parasites. Seemed to do the trick for one of my fish...but I'm wondering how long it takes to get out of the system...

It says the active ingredient is "chelated copper sulfate"

Thanks all and have a wonderful turkey day!!

From Scotts phone...
 
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