It's because the plants are taking the water only and not nutes with it.
There is no way I could replace Marty or anyone else really. I just try to help here and there. :thumbsup:
tinytoon Reviewed by tinytoon on . ppm and ph rising I am in an ebb & grow 55 gal res. mid vegetative stage. My ppm is 1200 which includes my water which is 200. So my nute ppm is 1000. I am using House and Garden nutes my ph goes from 5.8 to 6.8 or 7.0 and my ppm goes up about 100-200 per day . What is going on? Rating: 5