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Old 08/04/2010, 09:19 AM   #10
Moved On
Join Date: Apr 2010
Location: canada, toronto
Posts: 8,161
anything in reef tank for a long time will turn LIVE in terms of live sand, live rock and ... lol
even if its made out of plastic.

usually they refer to fake reef rocks as calcium carbonate rocks. (just what this wholesaler around here calls them so might be the same thing) not that many holes through it, so means lower biological surface.

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