Shelless Snail?

[DiscusZ]

One early morning (I gotup as my skimmer was making noise) on my glass looked to be what was a Snail with no Shell, it did not look like a Nudi, it moved pretty pass once I turned the lights on. It was a 1 inch long or so. Unfortunately my camera had a dead battery so I could not get a pic. It was a greyish/white color had 2 tenticles on its head

I have not seen it now in a week. I was going to post earlier but I was heading out of town the next morning.


Any ideas? I know it will be hard without a pick, it did not look destructive.


Jim