This morning I noticed that there is a small hole on one of my SPS corals that has some brown jelly growing inside. I'm worried this will spread and kill the coral. What is the best course of action for treating it? I'm not even sure of the name of the coral. I've had it for a long time and it's always done great. Here is a picture from before this hole appeared. Not the greatest as was taken on an Iphone. If anyone knows what the coral is, that'd be great aswell.
