Good or Bad Nudi?

[Steve Gordon]

Can anyone ID this Nudi? I found it amongst some zoanthids, but I haven't seen any damage yet. I just want to know what it is in case it's better to remove it now. Thanks.

 

[Travis L. Stevens]

Most likely a Zoanthid Eating Nudibranch. If possibly, I would give all your Zoanthids a Lugol's dip.

 

[LeslieH]

There are a lot of things it could be, ranging from a zoanthid eater to a green algae eater. Unfortunately the photo isn't sharp enough to really tell. Remove it if you're worried.