some say (sound like jeremy clarkson) dis height dat height, put your hand on top of your top bud with the back of your hand facing the bulb, if you can feel the heat off the bulb its too hot.
depends on your bulb, old bulbs get closer, if your plants are too tall, you can bend them over n an tie them to the next branch so the top of the bud faces the floor, (may only work if you topped rhem while vegging itll turn back the right way toward the light in a few days
also blow youe fans over the top of your plants not into them constanly cooling the hottest bits then, you should still have fans underneath to circulate the air aswell though,
check out my vid on one of the forums yhings, mine are about 12 inchs from the bud cos ive got the fans blowin straight across them,
stay safe yo
depends on your bulb, old bulbs get closer, if your plants are too tall, you can bend them over n an tie them to the next branch so the top of the bud faces the floor, (may only work if you topped rhem while vegging itll turn back the right way toward the light in a few days
also blow youe fans over the top of your plants not into them constanly cooling the hottest bits then, you should still have fans underneath to circulate the air aswell though,
check out my vid on one of the forums yhings, mine are about 12 inchs from the bud cos ive got the fans blowin straight across them,
stay safe yo