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CardBoardBoxProcessor · 01-30-2007, 04:56 PM

but what do you do at night when you don't need co2 injection? you can't turn off your filter.

01-30-2007, 04:56 PM	#11 (permalink)
CardBoardBoxProcessor Planted Tank Enthusiast (View User Tanks) PTrader: (3/100%) Join Date: Sep 2006 Location: Annapolis, MD Posts: 951	but what do you do at night when you don't need co2 injection? you can't turn off your filter.