Who Gives A Fish Forums

Update* I've got a bit of an issue on my hands now - the problem has spread to the second head. I decided to take it out and give it a freshwater dip. The coral had a pretty strong, unpleasant smell, which from my research seems to be a sign of the coral dying.

Some of the tentacles have a brownish ...

After bringing my corals home today, I noticed one head on a torch isn't looking great.

I know the pic doesn't show much, but there's this clear/white cotton-like area in the head of the coral. The mouth's not even visible.

It doesn't look right, but I'm not sure what's going on. I thought maybe ...