So im using General Hydroponics's GO Box.http://generalhydroponics.com/site/index.php/products/general_organics/go_box/http://generalhydroponics.com/site/gh/docs/feeding_sched/GO-Feedchart.pdf
It says adjusting of PH is not necessary but after mixing it tests at 4.8PH with my digital PH tester...