Ya it was about .5 lower in the rez then in the jugs so def dropped some! Guess i need to add the stuff and then adjust ph before putting in reservoir! Also i now know if water is in reservoir for a week or more i will pull a sample and check ph! Being plain water never messed with it which obviously has been to my plants detriment! Nice knowing food and whatnot prob woulda been fine had i not started shocking the roots with a drip drip drip of alkaline agua!