Planted Tank Guru
Join Date: Jul 2010
Location: Huntington Beach, CA, USA
I have no problem with space and do find the "normal" size bottle to be easier to find places to fill them. I do exchanges so don't worry at all about the tank appearance. For economy both on upfront and refills, check welding supply places. Watch for tanks which have expired dates when buying used. The date will be stamped in the metal near the top and are good for five years before being retested.