Yes I agree. For that reason I stopped the doser until I can get a handle on it. Ran tests after last night's wc... alk up to 10.5, po4 down to .o4, no3 5, ca 425. No more water changes for now. Letting things settle now aside from removing the dead. I'm not liking green on the surface of the sb and glass though...Watch your alk as you bring the nutrients down. I learned the hard way that when nutrients go down and alk goes up simultaneously and too quickly, it's not good news for SPS.
I'm with Bruce, the tank still looks great!