shiggs said:hey, growdaddy. were you running a cool tube or open lights?
i had been running an open light, 150hps. My temp were really hot at 18" above the tops. I put the glass and have one input 80mm muffin fan and one output fan, held on to the light hood with foil tape, so it's a nice flow. I now have the glass about 8-9" from the tops, much cooler in the whole room. I am thinking about putting my other 150hps in also, with glass of course.