I am using H&G nute's again it's been a while.My question is does any one else have your ph go from 5.8 to 6.8 overnite? I remember these nute's being much more stable.The only thing I am using different is my up and down solution.I did use general hydro and now am using technaflora. I understand there will be drift I just don't recall it so often.Any comment's??? p.s this is in coco..