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psychographic · 03-23-2008, 09:50 AM

No it's nothing like a FBR, that would pump the water through the media while a RDSB flow water across the top of the media (sand). The whole idea is to create an oxygen depleted source of water so anaerobic bacteria can grow.

03-23-2008, 09:50 AM	#5 (permalink)
psychographic Senior Member iTrader: (2) Join Date: Dec 2007 Posts: 1,441	No it's nothing like a FBR, that would pump the water through the media while a RDSB flow water across the top of the media (sand). The whole idea is to create an oxygen depleted source of water so anaerobic bacteria can grow.