merahoon
Well-Known Member
I am building a bubbleponics unit and everything has been taken care of except for the meter. I have a pH kit from general hydroponics but I want to be exact and plus you can't measure the nutrient mix once its been added to the water with that kit. There are so many meters out there and I don't know whether I need to get PPM, TDS, or EC?? I know pH is a for sure but what about the others? Please help me out! This is the only thing holding me back from starting. +REP to those that give me hand of course.