CantThinkofaName Posted May 2, 2007 Share Posted May 2, 2007 What exactly is a horizontal overflow? Anyone have pictures? Are they more effective? Link to comment
RBuddha Posted May 2, 2007 Share Posted May 2, 2007 I think you mean something like a calfo overflow system. http://www.reefcentral.com/forums/showthre...highlight=calfo Link to comment
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