coralfish
        
文章: 22
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于 2002-09-04 23:18 
No matter where you place it, some people put it into the main tank, some people put it into the sand tank, for my opinion, I put it into the last part of the filter system, because all dirty things will be filter out by the filter cotton before pass through the carbon, so the carbon won't be corrupted by the dirty things ! P.S don't put carbon too long into your tank, say 1 or 2 day when u need it, and must buy the good one !
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