[Beverly]

Here are some pages to read.....

The Relationship Between Alkalinity and pH:

http://www.advancedaquarist.com/issues/may2002/chem.htm

Solving Calcium and Alkalinity Problems:

http://www.advancedaquarist.com/issues/nov2002/chem.htm

High pH: Causes and Cures:

http://reefkeeping.com/issues/2005-03/rhf/index.htm

Low pH: Causes and Cures:

http://www.reefkeeping.com/issues/2004-09/rhf/index.htm

The rest of the Reef Chemistry links can be found at:

http://www.canreef.com/phpBB2/viewtopic.php?t=19927