Where is the calcium at? This page that Ocean Aqautics has a link to helped me.
http://www.advancedaquarist.com/issues/nov2002/chem.htm
What time of day are you measureing the PH? I've never been able to get mine over 8.0-8.1. What test kit are you using? Check the expiry date.
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Marty
50g reef, bubble king skimmer,20g sump,zeovit system, PM cal reactor
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