growstrong
New Member
I am going to be growing in a 4x4 tent running a 1000 watt mh and hps through whole grow. I am wondering about cfm in regards to cooling the light. No scrubber just outside of tent to outside of tent sealed from the inside of the tent (if that makes sense.) I will be running a 6 inch fan with scrubber for the air in the tent itself. So will a duct fan be enough for just the cooltube? It will not be running very far. Or do I need to pony up and buy another 6 inch inline fan? It can get quite warm in my house around summer, even with the ac.