Not sure - good or bad?

[200 gallon reef]

It looks like some sort of slug. Any input is appreciated.

 

[MBliss81]

Hard to tell, it's kind of blurry. Looks like it could be a nudibranch of some kind. Some of them are zoanthid eaters.

 

[jgraz]

Possible it is a stomatella. Does it have what looks like a shell shaped kind of like a fingernail. If so then stomatell snail. Good to have.

 

[Sniperhank]

+1. I was thinking stomatell but had to go to a meeting and didn't get a chance to post.

 

[200 gallon reef]

That's exactly what it looks like. . . . . A finger nail on its back ! Thanks guys