[danny zubot]

I have a couple of corals that seem to be degrading and I'm trying to figure out why. I have an elkhorn horn coral that has become thin and it's tenticles haven't come out for sometime now. In addition these yellow colored growths seem to be either growing from it, or perhaps it is the internal skeleton that has been exposed due to the degradation. my torch coral has become pale and it's tenti are less active as of late.

Due to the high temps outside my tank had been hovering around 90 degrees for a couple of days, could this be the reason for these corals to be suffering? My levels are fine accept for my PH (8.0), and has been adjusted using kalk. Fish are fine but my anemones are very lathargic as well.

Any thought? I'm a bit worried because I'll be moving soon and the added stress may be more than some can handle.