I just read through it. I already have everything I need except the red clay. I know there are a couple of Joann's near me, and since I am a cheap skate, I am prrobably going to give it a try. Cost was the entire reason to switch from Flourish ferts to dry ferts.
On another note, I saw the thread for your 125. Very nice. We are shopping for a single family home and when we get it, I'm getting a fish room in the basement. I've got all kinds of plumbing dreams in my head to make water changes, filtration, and CO2 easier for me. I hate spending time on tank maintenance instead of enjoying the view.