What on earth is this thing?????
 

It's not to often I don't know what something is but I admit I have no idea what this white/clear on one side, tan/brown on the other, flat (totally flat, no shell on it) blob thing in my sump is. The sump is dirty but I tried to get decent pic's of it. I should add that the big one is about 2 inches. Maybe some sort of flat worm????

This is the bigger one (white/clear side)
http://i261.photobucket.com/albums/i...n/DSC_0200.jpg

Brownish side (I circled it)
http://i261.photobucket.com/albums/i...Untitled-3.jpg

This pic (it's right above the aiptasia) is when it was turning around in the corner.
http://i261.photobucket.com/albums/i...n/DSC_0197.jpg

These below pic's show 2 of them, the big one from the above pic's and a little one
http://i261.photobucket.com/albums/i...n/DSC_0201.jpg

http://i261.photobucket.com/albums/i...n/DSC_0202.jpg

Crap I was looking on Melev's reef and saw this

mushroom eating flatworm
http://www.melevsreef.com/id/other/flatworms_pest.jpg
http://www.melevsreef.com/id/pest_flatworms.html


clam eating flatworm
http://www.melevsreef.com/id/other/lg_flatworm2.jpg
http://www.melevsreef.com/id/lg_flatworm.html

Not sure if either of them is (looks kinda more like the mushroom eating one) what mine is, but it might be :evil:

It's a flatworm but I have no idea which kind. I remember having one just like yours years ago and I disposed of it right away.

I think you might be right about the clam eating fw http://www.wetwebmedia.com/tridacdisfaqs.htm does this link show it to look more like yours?

Yipes. Thanks for the pics Laurie
Dish 'em and squish 'em :biggrin:

Kinda, colour wise it looks more like the mushroom eating one but shape wise it looks more like a clam eating one.

I would like to remove it but I have to leave for work now! The flatworm is in the sump but I just got a new clam that I put in my 80g yesterday. On the plus side it says leopard wrasses eat them and I have 2 in my 80g.

I have a bucket of liverock from my old tank waiting for my new tank to come and it has a bunch of these! Tried IDing them the other day but couldnt find anything close. Im pretty sure its the clam eating flatworm. ****

If it's a polyclad flatworm, chances are it's going to eat something you like. Best to play it safe with these guys and evict.

Then again, I had a big one in a 10 gallon back when I started but didn't see it really after I first noticed the surface of my rock moving. I guess whatever it ate that I would have liked, I didn't have yet :P.

Thankfully they are both in my sump. Unfortunately I only see them once in a blue moon, however next time I see them I'll remove them. Not sure how it's still alive since there's not much for it to eat in the sump and I think I first noticed it over a year ago.