My new Grow room is 3f bye 4.5f bye 8f it works out 80cbf i have a 600w HPS the ballest is outside of the room in the attic..I have a Vortice ca 100 which on full power should extract 250cbf with a Rhino carbon filter attached then i also have a 125 inline fan sucking air into the room....My problem is its reaching 30.5 in the shade so could i have to much ducting?????????Ive got my ducting running threw the roof into the fan units and pumping in and 1 out please HELP ME LOL....