SPS Tank O Death

[dsaundry]

I am watching this thread with great interest as I too have a similar problem. I hope you can isolate your problem and share with all. I have talked to many fellow reefer's and had similar advise. Carbon, Magnesium, too much softies, Calcium etc. I have given up on SPS as my softies are thriving and I am ok with that. I am eventually going to try an SPS only tank and hope I have better luck. The one thing I didn't notice on your thread was does your temperature fluctuate a lot or does it stay constant? It's only a theory but I am wondering on SPS if this affects them much.