Was at a pet store and my mom asked the guy working there, and he said yes. He also said the hairless rat we where looking at is 6 months, of which, the rat looked pretty small. So I don't really believe the guy.
Definitely not. Most people believe that hairless rats are all pink skinned and red eyed because that's mainly what you'll see in pet stores, but hairless rats can have any pigmentation that a normal rat can, it's just not as visible because they don't have hair growing in. For example, my hairless boy Smeagol is a black hooded hairless. He had two sisters who were black self hairless.
Not at all. My two current hairless rats do have red eyes, but my first hairless rat, Molly, had black eyes. They can be any coloration and any eye color, and in the case of my Molly they can have dumbo ears too. =P