Hi Everyone! I just noticed that there is something wrong with my angelfish. He has a white spot near his top fin. It doesn't look like cotton, it's just there. It wasn't there last night! Please note that I did just upgrade him from a 29 to a 45 gallon tank. I did everything your supposed to do. I just tried to feed him and he won't accept any food. Please help! Take a look at the picture.