I am still learning how to link an image to this so I can better illustrate what I mean, but when I am using my vacgun and pointing at the horizon of the slime sea, I can clearly see the horizon line. I suppose I mean that the horizon actually splits the graphic that occurs when you suck with the vacgun. I know: this is a bit confusing. If I can post a picture (which I do have, but I am confused as to how I post it) I will to better illustrate my point.
EDIT: I just figured it out!