According to my test kit, the alk is at the perfect level, no where near to high. All my corals are doing great. I haven't tested for phosphate though. The only parameter that changes is the salinity from evaporation, but I've very good about fixing it right away, and it moves between 1.022-1.025 over about 2 weeks, not in just a days time, it's fairly slow, but I usually add water before it gets that high and sometimes I'll add more water than before so it'll drop a bit lower. He's looked like that for a few days, and this morning with the light off he was totally bubbled up.. not normal... His sides like bubbled up HUGE and were all wrapped around him, but 5 minutes with the light on, and he went down, and looked like the picture I posted. Flow is good, maybe it's lighting? I know my corals did poorly on the bottom of the tank, and I raised them up higher, and now they look great.... Maybe he needs more light?