I tried to figure this out for a friend and have had no luck, his mother plants in promix have been hit the hardest, with the ones in a rainforest doing better but we can't figure out the cause. All under a 400 mh, room temp low 70's to high 60's, tried flushing with ro water and seems like it had no help, all are fed lucas 5/10(ph5.8-6.0) as they have been forever. ph meter has been checked and calibrated , all were treated with a 1% solution of azamax to treat a small amount of flying bugs and spidermites. a couple times, his last clones to be put into flower also had an issue, buds were like ard peanuts and leaves pointed straight up, major nute reduction seemed to bring them back for a small harvest. here are the moms, any idea's?