Wierd critter in sump - baby snail?

[Scoot]

Anyone?

This thing is tiny - 1/8" long. Found it in my sump swimming around. Its in a measuring cup for now, until I find out what it is....

I thought baby snail at first, but the two bits that look like antennae seems to be at its rear...

 

[Scottm]

Its a flatworm of sorts. A very interesting critter. Some of them are corralivores, I don't really have a recomendation about what to do with it though.

 

[Scoot]

As long as its not going to be parasitic and attach to one of my fish...

Update

Ahh, yeah, flatworm:

http://www.wetwebmedia.com/flatworms.htm

That first pic looks just like it, without the full stomach

 

[No_Floaters]

LOL...the 1st picture looked kinda like a clear dogface puffer.

 

[Fluff]

It is an acoel flatworm. A copepod eater I believe but nothing to worry about really. They aren't like their yellow cousins who breed to plague proportions. Their numbers will flux depending on food available. I had them in my tank early on but they have all died out on their own.