S.A.GROWZ
Member
So in the picture I have two different strains growing and I’m getting different readings on both. With this weeks nutrients the ppm was around 450 at the beginning of the change and ph was around 5.8 to 6 with both plants... I got away from checking these readings daily and left them alone for the week. The plant in the back ppm has dropped to 175 ppm but the plant closest to me in the pic ppm stayed more stable and is around 400 ppm. The ph has stayed consistent but what would cause one plants ppm to drop so much if they are receiving the same amount of nutes at the res change.
