I recently added a new addition to my aquarium. It's a nice fish, but its tendrils have been bothering me.

Here's a picture of it: http://i39.photobucket.com/albums/e1...0311004900.jpg

A close-up of the problem: http://i39.photobucket.com/albums/e1...0311004943.jpg

One of the tendril-thingy, no idea what it's called, is significantly shorter than the other. It was broken when I first got it.

I really don't care, it's a nice fish, but it's been almost a month since and the broken tendril either seemed to be rotting away or growing back.

I would like to know whether it's possible for those tendrils to grow back once they have been broken. And if it is rotting away, what can I do to save it.