New snail

[lakers10]

think i got a random snail on in my aquarium dont know if its a good thing yellow and black


on my coral

[recoiljpr]

Does it look like this? http://www.saltwaterfish.com/vb/attachment.php?attachmentid=202054&stc=1&d=1214773886

If so, that's a sundial snail and it will eat your zoanthids. I'd remove it.

If the snail doesn't look like that, can you take a picture? Its very hard to ID without pictures.