fuzzy cucumber

[drdrew]

hey all...i don't have my camera to post a pic, but this morning at my office nano tank a totally very fuzzy cucumber is crawling on my glass....at least i think that's what it is...it's fuzzy all over...no smooth edge, so i don't think it's a slug...it's not eating film from the glass either....any ideas what it might be???? oh, the LR came from gulf-view if that helps

[westonm]

How big is it? Could it be a cowrie with its mantle extended?

[drdrew]

i don't think so...it's kinda flattened out now and i see no space for a shell....