im useing 6 cfls 5 are 100 hunderd watts 1 cfl thats is 150 watts so all together 650 watts and i have the150 watt and a 100 watt about a inch and a half above it and 4 100 watt for side lighting and yesterday i put some bone meal in with it i'll send a pic with this to show u what im growing in and i just water with tap water so i dont know is that bad?let me know