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**jjp2** · 07-01-2009, 08:00 PM

I have run a CO2 to 0. I didn't get an end of tank dump, but did get dibris in the needle valve which took me a while to get out of it. I reccommend changing when it gets under 500.

07-01-2009, 08:00 PM	#7 (permalink)
jjp2 Planted Tank Enthusiast (View User Tanks) PTrader: (9/100%) Join Date: May 2008 Location: Cape Coral FL Posts: 607	I have run a CO2 to 0. I didn't get an end of tank dump, but did get dibris in the needle valve which took me a while to get out of it. I reccommend changing when it gets under 500. __________________ John http://www.plantedtank.net/forums/ta...nbow-tank.html