New calcium reactor


New Member
I’m new to calcium reactors. I just got a CR-100 Octo, pinpoint regulator, Milwaukee ph controller, and medium seachem media. I’ve got my ph set to 6.5 and I’m only getting 17.5 KH out of the reactor. Seemed a little low? Does anyone have any tips or tricks? I’m running it on a 75 gal mixed reef.