Water Chemistry

So I haven't been super active on here lately, having a lot to do with the fact that I recently moved and have been going through a bunch of crap with my tank. Since reseting the system up in January I have been battling STN on all of my SPS and have basically gone through and tried to correct for every possible cause of general SPS unhappiness. For reference, my parameters have been pretty stable at the following:

Salinity: 35 ppt
PH: 8.0 - 8.2
Alk: 9.5 dkh
Calc: ...