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Unread 05/16/2014, 10:45 AM   #113
Randy Holmes-Farley
Reef Chemist
 
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Join Date: Apr 2001
Location: Arlington, Massachusetts
Posts: 86,233
I'd use calcium chloride and magnesium chloride (or magnesium chloride plus 10% Epsom salt). BRS and some other vendors sell suitable and inexpensive bulk stuff). If cost is a big issue, you can get by with Epsom salt (magnesium sulfate).


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