brown on rocks and powerheads. - Canreef Aquatics Bulletin Board

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brown on rocks and powerheads.

12-03-2008, 02:40 AM

fishguy007 fishguy007 is offline

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Join Date: Mar 2008

Location: Windsor

Posts: 102

brown on rocks and powerheads.

in my tank, my rocks are starting to turn brown and getting some brown on my powerheads. is this okay though? what is it.

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