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Unread 11/12/2008, 11:11 AM   #7
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Join Date: Feb 2006
Location: Aurora, IL
Posts: 1,763
Per AWT regarding test results for calcium:

" *These values represent only the amount of free calcium ions present in the samples. According to Randy Holmes-Farley, the
total calcium concentration can be 10% to 20% higher. "

As for the phosphate result, the few samples I sent in all came back with very low results similar to NSW levels. Maybe that sample somehow got contaminated or they just screwed up on that one. I would question them on it.

Florida live rock addict
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