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.
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jammin26 Reviewed by jammin26 on 12-28-2007. how important is CO2? 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. Rating: 5