The Planted Tank Forum - View Single Post - Deep Substrate Bed - Denitrification
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post #12 of (permalink) Old 02-13-2013, 08:45 PM
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Join Date: Jul 2012
Location: Auburn, NY
Posts: 246
does anyone use those buried heat cables anymore? I thought one of the benefits of those was supposed to driving a very slow flow of water through the substrate.
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