I was thinking the 60-100% purity was because of moisture. I guess it could be a number of things not worth the chances though. I would have tested it out on a small coral QT tank but I guess this won't show any long term issues that might arise.
Where exactly are you guys getting your calcium chloride and magnesium chloride from?
Last edited by thedoogan; 03-18-2013 at 07:56 PM.
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