Kristin, I know this is way old and you've long since found another option. But if anyone else gets in a bind (I was too, *sigh*) Vulcan Beverages on University also sells CO2. The price is a tad high, but you do have the convenience of them being open at somewhat more convenient hours. I ended up having to buy a new, filled 5# as unbeknownst to me my 10# had expired (grrrrrrr.) Well, now I have a back-up while I try to find somewhere to test and certify the 10#. If anyone knows of anyplace that would be good!
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Sláinte!
Cindy
55 gallon - Hi-Res — 2wpg CF lighting; pressurized CO2; 18 watt Turbo-twist UVS; Eheim Pro II 2028; eco-complete; 2 Pearl Gouramis; 7 Harlequin Rasboras; 3 Otocinclus catfish
10 gallon — lo-tech; 1.8 wpg DIY CF light; no CO2; Aquaclear mini; Schultz substrate; java fern; java moss; 7 Neon Tetras; 1 flame dwarf gourami
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