My calc and KH is still not stable after 35% water change.
I was dosing 35ml of KH and 20 ml of calc every 12 hrs and my readings were ok until water change.
July 24 - KH 7.7, calc 430
July 27 - kh 7.7, calc 420
July 29 - weekly water change
July 30 - kh 7.7, calc 350
July 31 - kh 7.7, calc 400 (result 2 hrs after calc was doses.)
My calc is going up after water change lol. I'm probably dosing too much? Maybe I should wait tomorrow's readings before adjusting the dose.