use MH at 6-8 inch from plant. too much red light sepectrum makes stem growth. blue ight spectrum is waht you need and you get it real well frum a 600 MH Bulb
you dont need h202 dont use any kind of bleach. ill put it this way ive grown for a while now.. its a WEED youd be suprised how much they can take ither way there gunna grow, from personal experiance how much you baby with diff chems dusnt even mattter just love hur and sheel take care of you
the hydro bubbleponic system is fantastic. i know personally you wont be displeased. and dont worry about the cost. just one plant will pay for the whole system. just make sure you have good upkeep on it everyday. any questions let me know.
the stem is not supposed to be very long otherwise the plant will just fall over and die. try going to homedepot and getting eco-lux bulbs. there similar to gro-lux. it made my baby explode with growth.