Tokeybear12
Well-Known Member
So I'm on my 1st hydro grow and I'm using RO water at 2ppm. The ladies just popped 10 days ago and I'm using 1/4 strength nutes. The question is... do I run calmag at 1/4 strength also? How many PPMs of calmag should I be shooting for. My total PPMs are at 254PPM when mixing 1/4 strength... is this enough? I so new to this style and only ever used tap water before