Tokeybear12
Well-Known Member
so I'm going in FFHF soil in 3 gal fabric pots. I finally got my ppm meter today and tested runoff at 2700 ppm. This is crazy high this i know. Im on day 23 from seed and have fimmed for the first time and am doing lst. Ive added 1/4 strength grow nutes 2 times, once per week and added cal mag once. I started with tap water testing 156ppm. Then switched to distilled as I can better control things. I tested unused FFHF at 630ppm. So I guess my question is... why is ppm so high? Is it my ph? Please let me know