ya,i know....but hear me out....get a 1 gallon plastic container,put enough co2 ice,and water in to start a reaction,cap it...have a small diameter hose ,run it to collection chamber,(preferably above your lights(to warm gas)or you can just let it sit til warm(rm temp)...i've done this with zip lock bags(makes a pillow bag)and squeezed the results over the plants...i know ,sounds stupid,i have no idea how much c02 these plants need:wtf:...i guess any they get, is better than none...maybe ,i'll have Mrs desertdweller sit in front of them and yak away for an hour a day