Yeah, I guess the PH adjustment stuff would only be an extra $20 or so...do you have to heat your resivoir to get to 21C, or is the heat from the grow lights enough? Im thinking in my closet 2'x3' closet with a 250W HPS, it should OK.
This is unrelated, but was it you Adderpuff who posted that pic a while back, with that huge bud next to a computer keyboard for comparison? Sorry if it wasnt you, I could never find the post again and I wanted to show that pic to a friend, to show him what a 'real' grow produced
Thanks,
Awake204