Over the last month my green open brain has taken a bad turn for the worst. He is very closed up, and you can see the white spiky skeleton. There is nothing unusual except that he is smaller and shrunk. I have had him for about a year, and have had no previous problems. He is under 150mh and actinics in my 55 gallon. Calcium is 350-400, alk is 8 dkh, and mag is 1450. Trates are 5, phosphates are 0.