A medium sized rock that one of my Alveopora's was on fell today. I guess I didn't put everything back together as well as I thought. The Alveopora ended up on top of my Hammer coral. I reattached the Alveopora to the rock and put the rock back. The polyps on the Alveopora did come out afterwords, but weren't extended as far as they usually are. There's no bleaching yet. I've had a very healthy Alve die before after falling into the sand. I hope this one is OK.