i have had 2 firemouths for about 6 months now. over the last few week one of then has started to look ill. it has lost all its colour and looks small compared to the other which was the same size. I have attached some pictures (the best i could get) for anyone with any knowledge of fish disease. i have come across a few diseases in my 5 years of fish keeping but never this. any help would be much appreciated.





