as far as I know, ppm only is monitored during hydroponic grows ... go to the Hydroponic section, those guys will answer your ppm and tds questions, I bet ... :smokin:

ahhh, I see Stinky and I posted at same time ... dammit, woman, you're supposed to stay 3 steps behind, don't ya know that ?? ...
the image reaper Reviewed by the image reaper on . Maybe i am not researching far back enough I've been growing now a few years and would say i have become pretty successful. I can't believe i have never researched the whole ppm of fert regimines. i am a soil grower and keep it p.h. at 6.5-7, with proper ferts so i think. For the past couple of days i have been trying to find a proper thread on the explanation of ppm. could some one point me in the right direction? Rating: 5