how important is CO2?

[jammin26]

i have done a couple of grows and was wondering how important CO2 is as my last grow was very weak and didnt hardly smell at all.
these photos are a lowryder2 at 12 days old.
[attachment=o172119][attachment=o172120]

[Opie Yutts]

CO2 won't help much unless the rest of your grow is dialed in pretty well. It will not cure weak or spindly plants. Once everything is going good, it could add 30% to each yield and up to 2 extra harvests per year. Looks like you need more light.

[klondike_bar]

im currently gunning the 2L bottle of water, sugar, and bread yeast for my plant

cant say if it is or isnt giving it a boost, but the plant is healthy nonetheless, so it cant be all bad

cost me 2 bucks, no real reason not to give it a go. (make sure the lid stays OFF the bottle, it may cause some issues over less than a day :p)