Good? Bad? No doubt Ugly! Slug?

[Biotope7]

Sorry I could not get a better pic. It is right on the front glass of aquarium. Added finger leather today and just noticed it. It is about 2" long and has a few knobs,frills, if you will. My tank has been running about a year now 24gal. Looks like a slug of some sort. No bigger round than a #2 pencil and beige to fawn in color.
Thanks-Mike

 

[DJ88©]

[moved]

 

[MandM]

Looks like a nudi, very bad.

 

[Letmegrow]

Looks liek a Cuke to me.

Take it out of your tank and snap a pic.

 

[Biotope7]

I will have to find it again, and then I will tale a pic and repost.
Thanks-Mike