pH creep in the res continues, seemed to stabilize at 6.85 this week, but still too high. Also battling temps & humidity - Inkbird devices (humidity/temp) are VERY FUZZY with logic, if exhaust fan on 'cooling' then it wouldn't turn on 'till 76deg, meaning no air exchange when lightsout. Humidity alarm (RH@75% EEEK!) 6AM... Both starting to show minor high-pH issues (mag/zinc def), still trying to figure out all these "new system" variables...