Mylar sidewalls on the veg box, not practicle to enclose that to stop all light.
no ducting on the exhaust it comes right out the top of the tent. Fan mounted right there.
So what I am gonna try is.. I got some foam board from the garage and I built a three sided reflector so to speak and I put it on three sides of the top of the tent so that the exhaust vents on the far side of the tent top from the veg box. I will see how that does when the lights go off in the tent tonite.
Thanks for the ideas folks.