Hello all. So ive been vegging my babies for almost three months now in my walk in closet. The closet is 8ft tall 3ft wide by 6ft length. using 400w of cfl's/fluros mix. Been wanted to upgrade to an remote ballast hps light. well this is my second grow and never needed extreme ventilation. There is a door in the ceiling of the closet to my attic. Can anyone help me with ventilating ideas and suggestions please. Thanx "Puff puff pass"