Mate, thats like asking how long is a piece of string. Why did you post the thread mate? What do you want to do? If some of these dude start trying to explain shit you will be more confused than ever, there some hardcore growers here man, very technical. If you like me and just want to grow because you sick of buying then it's easier. Ya don't need to learn to many fancy names at first.
I am assuming of course that you want to start growing, if not then ignore me, I am attention seeker.