Need help with ID

[beam3er]

Hello,
I was moving a rock in my tank today and when I picked it up I saw this..the thing in the red circle in the 3 pictures below. It is like a leech, or a slug, or something very flat that moves with rhythmic waves along its. It is like a purplish gray with small spots. Is it friend or foe? Sorry about the crummy pictures I had to take them with my Dsi again. Thank you all.

 

[Hiker4twenty]

Might be some type of flatworm. I'm sure you'll get an id on it. Let me know if you need to use my camera to get a better picture.

 

[yote]

That is some type of nudibranch.At least that what it looks like to me.
Some are safe,some aint.But thats the biggest one I've seen a pic of.

 

[winyfrog]

I found one of those in my tank as well. I've not researched it yet. Try wetwebmedia, It looks like a flatworm or a nudibranch.

I have isolated mine until I find out what it is.

 

[XxKnuckleheadxX]

looks like a nudi to me also.. and it is big..

 

[beam3er]

It looks just like this The Sea Slug Forum - Dendrodoris elongata

 

[beam3er]

I can not find out of the dendrodoris elongata is reef safe

 

[AdeptMrSniffles]

The Slug Forum seems to place coral predators in parentheses, so I would think it's reef safe.

Although, something THAT large I wouldn't trust anyways.

 

[Hiker4twenty]

I think it's better to be safe than sorry in the long run. I'd get it out of the tank unless you're 100% sure what it is and if it's reef safe.

 

[beam3er]

ya..i am going to get rid of it