I feel from reading ALL the threads and guides and videos i've gained ALOT of information the only thing thats killing me is understanding when to give the plant nutrients such as how much NPK but not only when but why and how much. Any help would be lovely thanks.

Make sure you invest in a PPM digital pen tester. Having the right equipment like PH and TDS meters takes all the guess work out of the equation.

ok well what would I do with this "PPM digital pen tester"

You measure your nutrients in the exact right amounts to use in feeding your babies. Most all nutes come with a feeding schedule along with specific concentrations that go with each cycle. All you have to do is follow the directions and voila! That should help, Good luck

are you growin in soil or in hydro?

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www.pickandmixseeds.co.uk http://www.rollitup.org/grow-journal...w-grow-13.html

ill be using miracle grow moisture control for now. until i get more experienced.