SO today when I got home my angel fish was dead I have had him for five years and the only thing I can think of is either the feeder guppies I got had some thing bc my Leapard cent got sick a day after and I had to treat the tank. So either the guppies did it or the treatment. I used parasite clear. I cant figure out which one my Leapord cent is still alive. I am really upset now I have to start all over. Has anyone had a problem like this?