No, I don't have a PH pen or a TDS pen yet but I wan't to go to home depot this week to get it. Do you know of any other stores that might be able to help me out, I live in philadelphia if that helps. Also i've heard that you can spray bug spray on your plant and it gets rid of bugs and boosts the thc levels, What do you think. Is there anyway to control or make your plant have a better probability of become a female instead of male. Oh yeah I have decide to let my first harvest let nature take its course and let the males pollenate the females, that way i'll have plenty of seed for my future harvest.