Is it good or bad?? Need help IDing

[sEaLiFe4LiFe]

Hey RC I was inspecting my DT and came across this fella.

http://i1066.photobucket.com/albums...oads/DA0CE714-CB81-4D1D-A656-7F3E95D1168C.jpg

http://i1066.photobucket.com/albums...oads/19B8D925-8DF7-4397-A125-9456896C4EDD.jpg

Is it some kind of sea slug? Any help would be appreciated thank you in advance and happy holidays!

 

[Khazmodain]

Looks like a stomatella snail to me. They are okay as long as they don't breed like rabbits and take over the tank. I had some in my frag tank at some point but my peppermint shrimp ate them.

 

[Zalick]

I thought stomatella as well, but couldn't see the back. Harmless. I like em.

 

[sEaLiFe4LiFe]

Thanks for the peace of mind!