Honestly? I can't say if it made much of a difference, the plants I have outside in mother nature have already outgrown my indoor spring crop and they have two+ more months of good vegatative growth left and will easily be double the size they are now. Dry ice works too but it's expensive an inefficient. I think if you grew one or two plants in a closet and put 3-4 bottles of yeast/sugar water you'd help the plant but it takes a lot to double the natural amount of co2 in the atmosphere. Theory is that once upon a time there was actually more co2 in the atmosphere and thats why plants thrived so well during the dinosaur ages.
Purple Daddy Reviewed by Purple Daddy on . CUSTOM CO2 HOME MADE AND CHEAP!!!! OK so this is my first post i haven't seen a section on this in this site but if i have missed it then please forgive me. So we have a grow room and we all know that the one thing our plants love is CO2 although introducing CO2 has always been an expensive upgrade for the grow room... what if there was an easy and cost effective way of providing your crop with the CO2 it loves?? Well there is!!!! yes that's right and all you need is: 2lt plastic bottle and lid water sugar and dry Rating: 5