so i got my 400w mh cool tube rite now with a 250 cfm fan pulling air off of it from the other side of the wall. should i have ducting on the other side of the cool tube leading out the grow room so it pulls fresh air across the light or should i let it pull the air out of the closet itself? if...
so ive been veggin with fluoros and switching to hps for flowering, i jus bought a dimmable ballast that does hps and mh. should i put the fluoros away and just go with mh to hps, or is there a benefit to em? maybe on the little girls?