Alk is 8 nitrates 5 phosphate 0.08 water surface its 600 to 730 depends on location top and middle of tank range from 380 to 540 rock on sand are in the 300 and sides are 200 to 280 and sand is 100 to 190
post some pictures , what kind of light are you using? if the entire coral is bleaching then maybe too much light, if not I would suspect nudis . Pics are needed what is calcium and mag ?
But I have other that ate bright and growing well I've lost Oregon tort and strawberry short cake. But purple plasma pc raibown red milli Miami hurrance and other doing great