The Planted Tank Forum - View Single Post - Using Oil-Dri for cheap substrate?
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Old 08-30-2012, 10:25 PM   #16
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Originally Posted by aztx View Post
"Liquid rock" is a term used by many to describe water that is extremely hard and alkaline. The water in my area, for instance, has an EXTREMELY high carbonate content (and mineral content in general), so it's often referred to as "liquid rock".
Oh ok.. thanks. I thought it was something I could buy to soak my STS in. LOL
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