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Eggcrate for rock
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01-02-2014, 04:24 PM
Aquattro
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Join Date: Aug 2001
Location: Victoria, BC
Posts: 18,053
Quote:
Originally Posted by
Doug
I dont get that one Greg?
I suppose, technically, it could restrict water movement, although I haven't found this to be the case with 2" of sand or less. My NO3 has always been 0.
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