Alk still sitting around 8.1 to 8.2 dKh.
I’ve modified my calcium reactor pH swings a bit tho. I’m still running the alk based staged pH on the calcium reactor. At night from 9pm to 9am I raise the pH in the reactor to a high level that I don’t cause the media to melt. I was noticing alk up swings at night then dips by the end of the day.
I now test all twice a day 8am and 2pm. Depending on the alk level at those two time it determines what the pH level should be in the calcium reactor. Sense running my program this way I’ve seen a dramatic improvement in the PE on most of my SPS.