dying torch

Hello All, I'm looking for help with health on my 240 gallon system. It's been running for 2 and a half years, and I can't seem to have success with my SPS coral (and now appears one of my torches is dying.) I'm attaching some pictures of some SPS coral that appear to be dying. I think my...

I have had this torch for about 3 months and it is starting to die. I have had another torch go out like this and have asked around to no answer as to what is happening and if there is anything I can do to stop and prevent this from happening. Any help is very appreciated Pictures show what is...