I got this very healthy and vibrant hammer coral from my lfs the other day and when it was acclimated it ended up being lights out and when I put it in its tentacles were out a decent amount I woke up the next morning and it looked very retracted and much like this picture it's been a couple more days since then and I haven't seen it come out at all, the other frags I got that night are thriving my parameters are all fine I'm not sure what happened, I just saw this turned over and picked it up do you guys think it's dead?