Not to go against the norm here, but I wouldn't recomend starting with this type of system. I started this way, and had a few problems. It was a long time ago, and I have since realized what I did wrong, and laugh at myself for not being able to deal with the issues. Mainly it had to do with alge, root rot, ph issues, and simmilar problems.
Anyway, after starting this set up and failing, it set me a few steps back. If you are going from soil, I would actually recomend switching to Hempy buckets first. It's fairly similar to soil, only it's hydro. It doesn't involve any pumps or air stones or anything, and it's cheap. Doing Hempy buckets gives you the feel for hydro on a common 'soil' ground. It gives you the feel of mixing nutes, trying out different ones, different strengths, and the like. The benefit, is that it's alot more forgiving. If you fuck up the nutes or something, your much more likely to fuck up one plant rather than all of them.
Not to say that Mr. Green's system is hard, it really isn't, it just isn't too easy. My recomendation, start with Hempy Buckets for a grow or two, then switch over if you feel comforetable with it. But that's just my 2 cents.
