I set up a Avast Marine Kalk reactor/stirrer about 2 weeks ago. My tank is 3 months old. My KH started to drop as I added a few corals. I've already made it through the ugly stage. I had green algae brown algae diatoms blah blah blah. KH level is stable at 8.7 and my calcium and magnesium are staying pretty stable 440 and 1320. My question is my pH goes from 8.15 to 8.3 from midnight to about 1:00 in the afternoon when my lights are ramping up. I dose 600 mL out of my Kalk and reactor from midnight till 12:00 noon. When I set up the calc reactor/ I put in one cup of Kalkwasser. There is a place to put a pH probe on the calc reactor should I add more kalkwasser so my pH will go up? I thought it was supposed to raise my pH to about 8.3 to 8.4 and keep it there?