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#2
11-07-2013, 11:42 PM
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I don't know about aquarium grade but I buy basic Magnesium Chloride ice melting salt from a local wholesale hardware store. Over the last few years I have used nearly 100 lbs of it on my system. Maybe someone in your area carries it too http://www.envirotechservices.com/me...absolute-zero/
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"We shall dive down through black abysses... and in that lair of the Deep Ones we shall dwell amidst wonder and glory forever." - H.P. Lovecraft Old 120gal Tank Journal New 225gal Tank Journal May 2010 TOTM The 10th Annual Prince George Reef Tank Tour 
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