Ok, I found the right link. Home you got too many threads hopping around. Stinky and Rhyzome are right about the water issue but you mentioned in your other thread that your e.c. got up to 2.2 one day.....I think you burned them at that point and what you are seeing may be the end result of that. There were too many posts for me to figure out exactly about your lighting and feeding schedule.....you don't measure ppms' I assume....just ec?