snail without shell?

[g8rorchid]

I saw this guy on one of my rocks. He blended in really well with the pink colors on the rock. My camera isnt good enough to get a good pic of it. I would say its about 1/4 -1/2 inch long. Not sure if he is a snail without a shell or perhaps some kind of slug.

Any help would be great!

Thanks

 

[skippy2]

Google stometella snail. That might be what you have.

 

[JJ21]

i have tons of them in my tank...they eat algae and if they're disturbed, those suckers can move pretty fast