danderso, I think they are. I know that reefcleaners.org operates out of Florida and they always carry them.
Cool hitchhiker, Kitsune!
Ryan, can you get pics using more light so they're more clear? I can't tell what the first 2 are. The 3rd one I guess you're talking about the maroon spot? If it comes off easily, I'd say cyano, if it has to be scraped to come off, I'd say corraline.