Hi all! I bought a 2 head Octo about 8 weeks ago. About 6 weeks ago, one head bailed, parameters were good-couldnt figure out why it happened but the other head and everything else in the tank looked good. Yesterday, coral stayed pretty closed and I saw how tore up the skeleton is! My alkalinity spiked to 11, I did a water changed of 20% this a.m. I'm posting my Apex parameters from this a.m. Hanna testing showed phosphate at 0 and nitrate at 23. Can I do anything to save this coral? Any ideas why the bone is so shredded? Thanks in advance!

