ok so you asked 3 or 4 questions about "what happens with xxxx in soil??" The name of this specific forum is Hydroponics. That is Hydro for short and no that doesnt mean that it is seedless and kick ass weed. If you have a hydro grow in the works then ask away and dont beat around the bush. You want to know about ppm's and that is good. Allot of peeps think more is better but that is not always the case. Different strains can handle stronger nutes than others. You say that your PH starts at 6.2, is that soil or hydro?? Also with the PPM questions you fail to state veg or flower?? Strain?? Age?? Temp and all the other important things needed to know to do a successfull grow. If you want answers then you need to feed us a lil more info. I cant wave my magic wand anymore to read peeps minds to find this stuff out since LEO took that along with anything green
First advice I would give is to read the sticky at the top of the page named Latewoods Legacy. Happy reading and will be here to help as I can.