wierd thing on mushroom coral

[blackjacktang]

Well i have a small red mushroom coral and it has been moves alot. Now i notice it has like wite things around its mouth. What is it?
Sorry no pics.

 

[petjunkie]

It's the filaments from inside the mouth, can't remember the right name but they do that when stressed. Should calm down within a day or two provided you leave it alone.