Thread: Why does reef crystals only have 320 Ca?
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  #78  
Old 12/17/2007, 04:10 AM
2thdeekay 2thdeekay is offline
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Join Date: Mar 2006
Location: Meridian, Idaho
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Lower Ca and Alk levels could be the result of improper storage of salt. Salt mixes are hygroscopic. If you store it unsealed, salt mix absorbs water, which results in lower Ca & Alk levels from excessive CaC03 precipitation.