Over the last month and a half I have lowered my phosphates from .78ppm to .28ppm

These are my parameters. Corals are doing overall better now that I lowered phosphates, but I’m struggling to keep calcium lower, and nitrates maybe just a little higher. Any recommendations?

I’ve been doing about 12-14% water changes weekly. Should I hold back and not do a water change???

8-4-25

Salinity: 1.026/ 35.3

Ph: 8.13

Magnesium: 1410 ppm

Calcium Hanna: 525

Nitrate: 2.3 ppm

Phosphate: .28 ppm

Alkalinity: 9.5