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Dry Rock Suppliers
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02-12-2012, 03:42 PM
Reefer Rob
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Join Date: Mar 2005
Location: Langley, BC
Posts: 997
The type of rock makes all the difference. You want a nice light, porous rock. Heavy, dense rock, whether it's live or dry is useless, and will just lead to frustration with your nutrient levels.
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