I am experiencing some minor tissue loss on the base of my green millepora. The loss it at the base and only on the side that is shaded. PE and color are good everywhere else. The tips are also showing growth. Params seem to be in line, but I am fairly new to SPS so they may not be quite enough in line. 0 Ammonia, nitrate 5-10, nitrite 0, pH8.18 on the probe, Alk 10, Temp 76. Any thoughts or help would be appreciated.