The Planted Tank Forum - View Single Post - Perfectly Accurate South AmerAfricAsian Biotope! *(Updated Pics 4/10-First Page)*
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post #11 of (permalink) Old 01-21-2011, 10:58 PM
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Join Date: Mar 2010
Location: Spring Valley, IL
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Rust on your rock will likely lead to minimal leeching of Fe into your water. Its a fert that is dosed to your tank and wont have a bad effect at all. People put rusty nails in their substrate for the same effect.
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