HELP!!!!!!!!!!!!!!!! my plants are dying i think i over nuted im feeding general hydro 3 part feeding system soil is mirical grow soil they are two month old cuttings i flushed with reverse osmosis water 7 days ago they look over watered n droopy but medium is just drying up now n leaves are still burning do i flush again dont want to overwater what can i do temp is 82 ligths on 59 off they are still 18-6 im trying to get them healthy enougth to flower n i need to hurry what should i do pls help i heard something about superthrive is it heat stress or maybe cold stress i need a good diagnostic before its too late