What is this blob on my ricordia???

[lpsreefer]

It’s been there since yesterday and it seems like it got a little fatter today. Just a hair fatter, I think… It doesn’t look as brown as it does in the pic, looks more white in person. Thanks for your help, this thing is bugging me. I don’t know if I should try to brush it off or what.

http://reefcentral.com/gallery/data/500/138838DSCN3778.jpg

http://reefcentral.com/gallery/data/500/138838DSCN3777.jpg

[Chappy]

Has it moved? It looks like some type of slug or worm. I just noticed one in my tank in my sump...looked similar to that but it moved pretty fast when I disturbed it.

[Marsfrogie]

I second that being a worm. I'd try to brush it off.