The styophome (sp) cheap ones are the best....BESURE TO LEAVE A SMALL HOLE IN THEM .
It still get back to safety for you first and the plants next.
Dry Ice and paint ball tanks are only for rich growers.
Nothing beats $20 bucks for a 2.5 MONTHS supply in a large room.
Remember Einstein could not change a light bulb.
Also he and Edison worked at the patent office. Does that tell you something, think real hard PATENT OFFICE
oldsanclem Reviewed by oldsanclem on . paintball inspired C02 system i havent started growing yet but ive been reading heavily into it and comparing systems, cost, effectiveness etc... i originally was going to go with a 16 plant ebb and flow system, but have deeply considering NFT as well (worried about clogs in the lines while at work) well anyways, i believe i came up with a relatively cheap way to add c02 without buying those really expensive computer controlled propane systems... using a paintball gun front block + regulator + macroline and tank ASA Rating: 5