Tester for Fox genetic PS auto

When I first change my solution it has a ph jump up till stabilizes. Then I check twice a day. Usually having a good mix In solution will buffer itself. From my experience I have to run a higher tds then most with my nutes to get the more stable dialed in amount. Then I have a slow increase in ph closer I get. My biggest issue was keeping solution sterile avoiding root rot. Then keeping water cooler. 62 F is ideal temp. The bubbles add oxygen to water not co2. Roots need air, and oxygen. So only keep root tips in water as well.