IMO it sounds like your living with your rents and your trying to hide it... i think its wont work... mine is about as small as you can pull off. check my grow thread link. they WILL grow over a foot. maybe a veg chamber?
Uh. I have flowered plants that have stayed under 6 inches tall... I guess I should have given you guys more detail about the way I grow. But you will see soon Hopefully. my seeds are germinating.