You need to remove the hot air from the grow space. Not just the vent but far away from the room where your tent is. If you don't do this all the fans in the world won't help.

Give me about 15 min ill post some pics up for you.
319 Reviewed by 319 on . lighting my tent with a 600w dual spectrum - Help i'm a 1st timer bought a tent kit that came with a 600 w (sunmaster dual spectrum) however even with my 5" fan and filter I'm running temps around 100f. should i buy a lower watt Metal halide bulb for the veg stage? then switch at flowering with the addition of another inlet fan to keep temps lower during the end stages? I've got the light approx 1 metre above my seedlings (running 18/6), they are stretching up (currently 2 - 3inches) and the 2nd set of leaves are showing through. Would appreciate Rating: 5