Thanks Earth,and justaseed i am really surprised on how quick these are taking off all new branches are now coming out with 9 leaves!!! This is a good thing i think? I just added a 250 cfm exhaust fan to replace the pc fan that was bieng used. So now its 250cfm of fresh outside air in, and 250 cfm exhaust out. I am also gonna make that exhaust fan do the work for the cool tube. It will also help with the smell to as it is piped into a vent going through the roof!