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Old 01/05/2008, 01:48 PM
sixfins sixfins is offline
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Join Date: Aug 2007
Location: Plantation, Fl
Posts: 113
I've heard that you can dip them in a hypersalinity solution, like 1.40 SG. But, I don't know how effective this is. also seawaterexpress.com sells hydroid free rock and macros, just another option.