These are my EC and PH meters..

I´l leave the PH during the entire VEG on 6.0 and the entire BLOOM on 5.6. In the VEG i won´t measure the EC, just in the BLOOM fase. I´ll keep it on 1.9 untill the 9th week blooming. after the 9th week I´ll drop down the EC too 0.9 for the taste.

I also add Mycorhizza fungi too the soil before planting them in the big pots, that give the fungi the chance to grow. It helps the plants a lot.