oh, that makes sense... so how do i know which one is right for my plant?
Sjapp Reviewed by Sjapp on . What does PPM stand for? on the back of the advanced nutrients i bought some advanced nutrients for my plants, and i don't know how much to add to my water. Sensi Grow (Part A & B) This website has the table that says how much to mix, but i don't know what ppm stands for. please help Rating: 5