I'm using local organic soil from a shop down the road, no additives. I'm simply using rain water, store bought purified water, and on occasion tap water. I monitor the ph in the tab water just to always make sure it's not way out. Only testing with ph strips! Nothing ever been way out of whack? The leaves look great no nuts burn, no yellowing, a few tears in some leaves but this plant has been out door since the clone was taken. Temps here average from 68 at night to 90 during the day she seems healthy, she just started her natural flowering outside. I tried uploading a pic via my iPad and had trouble. Thanks guys