Please refer to this thread for the details on the tank this fish is in/his behaviour etc;
After all that the conclusion is fungus as tonight I have noticed white fluff all over one of his pelvic fins. I cant get a good picture because the light in the room he is in isnt very good so it will have to wait til morning.
I added some Aq salt to the water, he has an air stone, the water should be around 75 degrees because its cold in the room at night but Im going to clean one of my thermometers in the morning to place into the tank as well as a full water change tomorrow after work.
Seeing as though it didnt appear to be there yesterday do you think I've caught this early enough to treat it? & what else would you recommend if the Aq salt doesnt work?