Zoanthid eating nudis

[Decaco]

sorry i hate to be the noob but i just started my
90 gal tank up. and my daughter pointed out these
what i believe to be a nudibranch. the tank is a few weeks old
and just recently added my first couple of corals, zoas. so now i am worried these will harm my zoas. i am not sure it is a nudibranch but it is a snail without a shell.( my daughter calls it a snug snail/slug)

 

[650-IS350]

Got pics?

ANy of them these guys

http://www.coralpedia.com/index.php?module=Gallery2&g2_itemId=384

or on the links I posted?

 

[dark_stranger]

<a href=showthread.php?s=&postid=15246136#post15246136 target=_blank>Originally posted</a> by Decaco
sorry i hate to be the noob but i just started my
90 gal tank up. and my daughter pointed out these
what i believe to be a nudibranch. the tank is a few weeks old
and just recently added my first couple of corals, zoas. so now i am worried these will harm my zoas. i am not sure it is a nudibranch but it is a snail without a shell.( my daughter calls it a snug snail/slug)

Try here for identification.

http://www.xtalworld.com/Aquarium/hitchfaq.htm

possibly a "STOMATELLA"?