so when i reach week 7 i start going down right?hey man, i use advanced nutrients and they have a calculator on their website... even if you're not using their nutes I would think you could get a rough idea of what your ppm should look like from wk to wk...
I'm in week 4 of flower right now and my ppm is around 1400-180 or so that my tap water has in it... I'm thinking that I started around 1000 when I started flowering, and veg was lower still...
Website is advancednutrients.com....