The Planted Tank Forum - View Single Post - Best way to add calcium?
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Old 12-30-2012, 02:28 AM   #5
Sluggo
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You can buy various calcium boosters for reef tanks. I use Seachem, but it may raise your pH:

http://www.drsfostersmith.com/produc...98&pcatid=4698

You could also try kalkwasser:

http://www.drsfostersmith.com/produc...95&pcatid=4695
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