I need to raise my pH and I am not sure how. My alkalinity is 3.5 meq/l or 10 dKH. My pH is reading 7.61 this morning (7.53 last night). It has been this low for 3-4 weeks and all of my SPS have slowly faded to their death. These readings were measured by a laboratory grade multi-thousand dollar YSI unit calibrated with 3 standard solutions. I believe this happened when sheetrock fell into my tank while I was switching from halides and hanging LEDs.