The Planted Tank Forum - View Single Post - bethesda maryland co2 fillers?
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post #2 of (permalink) Old 03-08-2007, 11:46 AM
SCMurphy
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Join Date: Oct 2003
Location: Maryland USA
Posts: 3,220
Roberts Oxygen, they generally exchange tanks, check the phone book for your local outlet. I exchange 20#'s for $23 or so.
Maryland Fire Extinguishers, (I think) in Rockville, will fill while you wait. Little more expensive than Roberts is, now, used to be cheaper.

Sean

Aquascape? I'm a crypt farmer.

It's a fine line between fishing and standing on the shore looking like an idiot.

That IS an aquascape, it's titled "The Vacant Lot".
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