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Coarse Or Fine Silica Sand Water Quality

May 22 2011 Until recently I could only get 20 grit sand at a reasonable price 12 grit sand was twice as much But it seems to me that the flytrap roots do better in the coarser 12 grit sand though they do fine in the 20 grit But I finally worked out a deal with my supplier of 20 grit sand to order me an entire palate (35 bags) of 12 grit sand