Interesting that your having issues with ph, i went from using lots of PH up, then some ph down, now I basically only use the ph stuff to adjust my reservoir after a few days. Just today i noticed my big apple cookies had a leaf that was not lookin good and i was like "lemme just check ph" cuz i normally havent been, and it was fricken 6.8. Cuz ive been using armor si, it raises the ph, so now i know i gotta adjust it. Still fricken learning man, so dont get down on yourself, the more positive vibes the better they grow imo. If i were you, id get a soil ph pen and stop guessing. And yeah dolomite lime is good for adjusting ph, but bro i would just get a bottle of GH ph up/down and adjust your water to the proper ph and water the fuck out of em and flush with the proper ph water. Then just test your soil everyday with the pen and in a few days it will get to the right PH. Soil takes alot of patience....which is why i dont grow in soil lol. In hydro stuff like ph and deficiencies are fixed hours after applying the medicine. This is a good pen right here and I think crucial for any soil grower:
https://www.hannainst.com/groline-s...Nakp6sSFOsTTeqwQ8qza4MnbqeFqaXIwaAvpBEALw_wcB