Saw this good price on 20lb CO2 tank on craiglist

[tonggao]

Not mine, but thought somebody here might be interested.

http://sfbay.craigslist.org/sfc/for/277098576.html

 

[sfsuphysics]

man I so need to get off my butt and get my calcium reactor set up, dosing a 2 part is such a pain.