Brain coral looks like it's going to pop...pics added

[Coralgurl]

It's on the sand in the middle of the tank. I'm not sure what kind, I got it from Snappy, it's red green and bluish. It's about 3 in tall right now, usually lays fairly flat, but wrinkly if that helps.

[reefwars]

mine do it all the time ,if im feeding the tank they may swell right up sometimes looks like they are gonna pop sometimes they do it if i handle them or kick up a sandstorm.....not a regular occurance but happens every now and then