not really, however he has developed a calcium type of lump on his forehead the pressure seems to be affecting one of his eyes, as it's swollen. He's the only one in the tank affected.. not fluffy like fungi, but almost appears to be hard like bone? Any ideas for treatment, I started the tank with salt? I'm getting ready to remove him and swab the area with Hydrogen peroxide..take a look let me know if you have any ideas?