[whatcaneyedo]

I just bought a bag of Absolute Zero Melt Down ice melter by Envirotech Services Inc to use in conjunction with Magnesium Sulfate on my reef aquarium. The product claims to be 100% Magnesium Chloride Hexahydrate and free of toxic metals and substances. It was $27 for a 50 lbs bag at Amco Wholesale here in Prince George.

Does anyone have any experience with this product?

I'm considering setting up and dosing into a QT tank with some xenia and an acro frag just to see if this has any negative effect on them.

I've tried calling their toll free number and the response that I received from them so far is that they would not recommend it as it is not pharmaceutical grade.