I've been using Technaflora products there recipe for success plan. !000w HPS Light has been 21/2 to 3 feet from plant. The flush I used 1st was CLEAREX 3 gal. res. 15-30ml per gal. I think I used 60ml. I saw ppm rise then stopped. I don't know if this has anything to do with this but, lights were schd. to go out at 7pm just at the time I took my last ppm reading. So she did't get anything till next am. That's when I saw the first signs of there was something really wrong. Thats when I flushed again.