Hello. I added the coral below to my tank. At first it really thrived and was very full. Now it’s pulled in a lot and the only change in tank parameters over time was Alk moving from 7.8 to 8.3 over the course of a month. Im targeting 8.4. Calcium always around 420 and Mag 1300. Would really like to know name of coral and what may have caused the change. Thanks in advance.