slug/snail/critter ID needed

[perchpsk]

I saw this little guy this morning. looks just like a snail without a shell, its about 1/2" and brown and has a mouth like a snail but it moves like 10x faster than any snail i have seen. any idea what it may be? good or bad?

 

[kreach]

I have something like that in my tank too... I assumed it was a nudibranch of some kind. If anyone has an ID that would be great.
I wish I had a pic, but I hardly ever see the little guy...

 

[bang guy]

I'll need a lot more description to even make a guess.

 

[perchpsk]

Well Bang, picture a snail without a shell, or a garden slug. It moves very fast compared to a snail. about the size of a luttuce nudibranch. Its skin is brownish and slimy looking. didnt appear to have any sort of a shell. I've only seen it twice. i will try and take a photo.

 

[attml]

Did it look like this?

 

[attml]

Or this?

 

[tangman99]

Attml,
What is that first one?

 

[perchpsk]

The 2nd one!!!! thats the guy.. now what is he?
Thanks!

 

[ty_05_f]

I think it's a flatworm but could be mistaken

 

[bang guy]

Chiton.

 

[perchpsk]

and what may i ask is Chiton? good or bad it sure is ugly!@