where to buy co2 tank CHEAP!

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Aquarium Advice Addict
Dec 30, 2008
Phoenix, Arizona
okay so i am on a VERY tight budget, and i really want a co2 tank, but i cant find one cheap anywhere. i looked on craigslist and i hardly found anything. can someone lead me to a site where they sell these for cheap? i also want to know what size of tank i should get. i have a 15 gal.
How cheap are you looking for? CO2 tanks aren't exactly cheap. :) For a 15g, you would be fine with a 5lb tank.

I ended up buying mine from http://www.aquariumplants.com because it was cheaper than what they are sold for locally. But, you have to find a place to fill your tank instead of swapping them in (since you bought a shiny new tank) and for me that was hard to find.
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