Awesome Tiny, thanks for the reply. Yeah I thought if you abided by their nute schedule you'd be close, good to know. Also, with pH not affecting the ppm level, I can pH at the very end when I get my nute mix in the rez at an ok ppm range. So I tried out the 18gal totes and as far as one would want to get in a project before backing out, I decided to go the 5gal bucket way. Had to many problems arise, but also it makes more sense and it's way easier.