What should I do about this?

[MikeDeL]

So my hermit crab hi-jacked a shell and took this stuff hostage. Should I do anything about it?
http://www.aquaticphotos.com/data/media/16/MVC-006F.JPG


Thanks,
Mike

[matt]

That's what is known as a "mobile xenia progagation system." I had one for aiptasias, it worked great.

[BA]

lol, that's awesome