The Planted Tank Forum - View Single Post - bringing up Kh ,do I use CaCO3??
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post #2 of (permalink) Old 12-24-2002, 07:07 PM
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Join Date: Jul 2002
Location: Victoria,British Columbia, Canada
Posts: 3,461
Try using a little Crushed coral in your filter. This is the method I use to stabalize my planted tanks a bit. Don't use much, maybe a couple of tablespoons at first (to test)
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