I adjust ph once or twice a day. Once in the morning and once at night. The hydro stays around the 6's. Then I just dump more CO2 water. I've gotten pretty good at judging how much to add to drop it a few points. I use about a liter of seltzer water a day for the reservoirs. My roots are incredible and thick. I have about 4 gallons total of hydro water and nutes.