Help! Nudi ID please...

[caf]

We found this new nudibranch type of thing in the 'manders food dish this morning. It looks like a nudi but is very very flat. It is about a nickel, maybe a little larger in size. I hoping if someone will know if it is a good thing or a bad thing, so I know if I need to try to remove it. The picture for this one can be found here:

(In case you can not view files here, the link is below
http://www.cecolts.com/ofiles/unknudi.jpg

 

[SKremk]

It looks like a polyclad flatworm, a likely predator, so you should take it out.

Out of curiousity, what's the "'manders food dish"?

 

[caf]

Polyclad? What does it predate upon?

The manders food dish = A plastic dish suction cupped to the wall to put pellets in for our Mandarin Goby to nibble on all day long.

 

[SKremk]

They can eat clams, snails, sessile inverts, etc.

 

[TAF]

Eeep!

I moved him to CAF's 'Things you shouldn't have in a salty.' tank.

I wonder if it will eat the aiptasia. I dopped it onto a rock, but it immediatly moved to the sand floor and hid.