i know of one way, exhaling!
Phresh as it Gets Reviewed by Phresh as it Gets on . Any1 know the best way to make C02 who knows the best way to make C02 using household stuff on a budget all opions and thoughts appreciated thanks :) My plants are about 29cm's i think thats about 14inches not too sure, there 6weeks old. I wannaincrease the c02 to help them grow ! :D Thanks! Rating: 5