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How long has the sand been in use in your 20 gal?
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Adam 90 gal reef, 30 gal sump, Tunze 9015 skimmer, 2 X Tunze Turbelle Stream 6125, Coralife Aqualight Pro 2x 250 w DE & 2x 96 w PC, 9 w Turbotwist UV sterilizer, 2LF phosban & GFO reactors Last edited by Oxymoron; 04-17-2011 at 06:33 AM. |