are u using an enclosed reflector, along with the direct exhaust blower? cause if so you can put the light even closer, but nothing less than 8 inches. My 1000 watt hps is about 10 inches from the top of my plants, and i have never had any sort of burn form the intense light or heat, but my reflector is encased, and i have a blower specifically for the light. Along with fans pushing the heat away from the plants. But if you dont have an enclosed reflector, it would be best if you kept it 10 to 12 inches away.
sensiskunk Reviewed by sensiskunk on . please advise..29 days into flowering ok here are some pics im in day 29 of flowering,thes are white rhino,noticed that some foliage is getting brown spots,,then after a few days are yellow,with some sort of blak burn,there are some pics posted,,i was foliar feeding as soon as lights cam on,,but ive stoped,im using earth juice,bcuzz bud booster,and fish emulsions,,it started at center of plant and is going up from what i can tell,is this normal at this stage of flowering,they are in 5 gallon pots,,water when they feel light,,using Rating: 5