Hey Readytoride08,I personaly have never had a rubbermaid grow box but,for the light situation I would add more lights than with the 20 gallon as well as a higher CFM rated fan(being that you are basicly doubeling the size of the grow area)just to be safe,more light and air won't hurt.As for leaving the box open,if you are going with the original set up (one on top of the other) I don't see how you could leave it open being that one supports the other.If plant hight is a concern either go with a Indica domminant plant or do my personal favorite and LST her,or do both.good luck with your grow!!
MEKONE Reviewed by MEKONE on . 40 gal.rubbermade? I was looking over the forum when I jioned thinking and reasrching the best way(with good space)to grow good nugs.I seen the 20 gal.rubbermade and thanks to the guy who thought of it,enguines! Now some questions.I was thinking about using (2)40 gal.rubbermade containter.Below is some questions. 1.)When the plants get above 2 1/2 ft. do I need to leave the box open so it won't burn the cola's or do I need to trim the plant? 2.)Would I still need to use the suggested lumans for the 20 Rating: 5