1) Flush, then don't water them for at least 7-8 days
2) When you do water again, fertilize at 1/4 strength, tops
3) Back your lighting down to 20/4 or 18/6
4) Move your lights about 2 1/2 feet from the plants. 1 foot is too close, particularly for smaller plants (ie, 5-7 inches), with 800W HPS
5) Relax
