Thanks for the help, I was also wandering how much I will need? I am gonna grow 4 plants to about 4 feet high. Will one lot of each be enough for the whole grow? Will it last me more than one grow? How cost affective does it work out? Are there other more cost affective nutrients? Its gonna cost quite a bit to get all that stuff and its a lot of hassel having to get everything seperatly, are there any nutrients the have everything you need in one product?