I was just wondering if the bigger the plant the higher the ppm should or can be? My girls are each about 6' wide all the way around and about 4' tall On a side question when switching to a flower regiment dose your ppm want to be lower than the veg ppm? I found when I switched the ppm is rising at 1100 when in veg I was able to hit 1300 without any problems. it would still fall at 1300 I just chose not to go any higher because it would only fall 120 ppm in 5 days.