My Xenia's are all gone. Last of them died off yesterday. I don't dose straight iodine.. I use Coralvite, Magnesium, PH buffer, Essential trace, Calcium, and Purple Up. All of my other corals are doing awesome and my super large Pink bubbletip is fine.
The rock was purchased from one of the LFS's and was curing for 6 weeks in their tub. I would think that if it was something in my water, it would effect the other corals. It sucks because I really like the pulsing Xenia's and I'm concerned.
The only thing that I could think of was the phosphate reactor needs a new O ring and I turned it off last Sunday because it started leaking. After that they started to die off.hmm I need to check my phosphates and get my reactor up and running today.