Hi this thin lookin bit of coral has been there for a wk... it never moves or retreats just stays swingin all day and night.. any ideas please

[Garen]

 

[SurfTrack]

Looks fine. Sometimes corals just have strange bits like this. Nothing to worry about. The polyps are extended and the rest looks healthy.

 

[Billdogg]

Many soft corals will "shed" small branches as a way of spreading out. My guess is that is what's happening. The downside is that if you are not careful, it can easily overpopulate the tank