what is a good range for PPMs to be at around week 4 with some strong healthy plants?
Oh So Grow So Reviewed by Oh So Grow So on . ppm Qs hydro. Hey folks its my first grow im using a bucket system and am about 4 weeks in i had a problem with ph that i have got under control but whni filled res wit new water and put nutrients in the ppm went up to 1600 im using gh flora gro ,micro hardwater and bloom all from gh so where should my ppm be at my ph is at 6.9 im using 1000wtt mh if i need tolower how do i lower the ppm any help is appreciated. Rating: 5