Anyone know what this is?

[CptnJack]

These things came in on some Fern Caulerpa. They look like some sort of slug... when I carefully removed one from the basket with hemostats, it turns out it has a hard shell between the head and what appears to be the tail (more foot actually). I have a very small tank so I keep the caulerpa in a net breeding basket, so they are contained in there right now.

Perhaps a snail? Are they ok to let go in the main tank? Are they good for the sandbed? Are they evil? Will it kill the bad crab I have that I can't catch? Are they good with butter and garlic?

Thanks!

Some can't see the pic? Click here

 

[Anonymous]

See this link, I think it is what you have, http://www.seaslugforum.net/oxynanti.htm

There are some good links in that article where you may be able to get some more info.