A big thanks to all for your replies to my previous questuons..i am new to growing and as i said had one very small crop 1st time round. I have a 200w growing light which has 4x55w fluros for growing and i plan to get flowering bulbs for next stage. i have a large fan in the room and keep the temp at 65 -75. water is between 6.5-6.8 and i water by hand watering until the pots r wet and at first sign of water dripping from drainage holes i stop. i was told to use tomatorite for feed and i have plants burning at ends of leaves,have tried to flush with water but still occurs. please could anyone help with best feed....how many times a week to feed n water and how to keep plants in peak condition. have lights on 18hrs off 6hr,know that lights n hours arnt as good as it should be but security is vital here. please help as i love tending my plants n want the best with the equipment ive got. sorry to be a green novice but the more tips given the better i get.