Hey guys! I'm still new to this reefing hobby and I'm encountering an issue with keeping my Alkalinity and Calcium balanced. Every time I test pH it's around 7.9 to 8 but for the past few weeks my calcium has been reading rather low (200-300 ppm) but my kH has been at 14. I've recently done a 20% water change and the kH has stayed the same. What should I do to lower the kH and help keep my kH and Calcium balanced. I've read that high kH can cause calcium to deplete and vice versa. Any help that you can give would be greatly appreciated.