My corals aren't open much today, and my toadstool is completely shrivelled up. Today I was moving a rock to make space for a feather duster worm, and my toadstool was barely attached to the rock, and he fell off, I then put him back and wedged him in the rock. He is now all shrivelled up and looking worse than ever. My other corals are also a bit closed, what should I do?