I have a 4x2x6 closet grow and I recently added an exhaust fan that is 50 cfm with an oscillating 12in. fan and an 8in. fan but temps are still at 83-85!! Do I need more cfms to pull out the heat?? Btw I am using 4ft fluorescents and 1 65w cfl and 3 27w cfls and I thought they wouldn't get that...