My porcupine puffer has a couple little white "cotton ball" looking things growing on him. He acts fine and eats well. I had a friend tell me what it may be, but I forgot the name. They said they had a fish with the same thing and they picked the white spots off. I attempted this with one of the spots and got most of it, but there is another on the belly, which will be harder to get to. Can anyone tell me what this is and is there any treatment for it. Also, is it contagous?