GrowinGreen23:
My understanding is that co2 is a gas that quickly dissapates throughout its entire enclosed area, which includes the area near my fan. Even if it didn't, my fan is big and quickly sucks a lot of air out of the room, thereby sucking out the co2 too.

Everything I have read about this says that you need to have the ventalation off and the lights on when using co2. Otherwise it is a waste of time and money. I don't see how I can have the ventalation off without the plants becoming dead or extremely sleepy.
Opie Yutts Reviewed by Opie Yutts on . I guess I can't use co2 in my set up. Or can I? I finally have enough funds so that I can expand my set up and use co2. I have researched this and have heard varying reviews. Some say it doesn't really make that much difference, and some say it makes all the difference in the world. I thought I would see for myself. For my flowering stage I have a space about 3' x 3' x 8' tall, and I use an enclosed hood with a lot of air pumped over a 600W bulb. This air comes from a big inline fan that has a big filter on it, which filters out the weed Rating: 5