Droopy anthelia

[Trabby]

We purchased a beautiful chunk of rock on Saturday from another forum member. It has a few striped green mushrooms on it as well as a nice cluster of anthelia. Right from the moment it went into the tank it has looked beautiful.However this morning prior to lights coming on I noticed that it was slumped over and not looking so happy. I overrode the timer and put the lights on, it seems to have perked a small bit but is not even close to its normal beautiful stature. Is it still trying to get used to the new tank or is something more sinister going on????