I wish i had read the reply s before going out! I've just be to the LFS and they recommended a dose of Methylene Blue followed by the Fin Rot one if that doesn't work. I bought a battery powered mini pump and air stone as well to help get some turbulence on the surface of the water. But I cant take photos now as the tank is a deep shade of blue. When I say cotton wool, it looks like the fish has small strands of cotton weaved across its body. Its not the white spot type found with ick but not sure how to tell the difference between a bacterial infection or a fungal one.
My concern though is that the fish will just starve to death before anything else. It hasn't eaten for a couple of days and whilst I know they can go for a few days without eating, there obviously comes a limit to this.