I did a 50% water change yesterday. I treated with prazi about 8 days ago. I noticed that when i got home yesterday he was skinny, ever since i got him he has been pretty fat. Thought that was kinda weird, then i noticed that 1 eye looked lower than the other and that one side was not raising when breathing. Then a little while later both sides were breathing again. He ate but maybe only 1 or 2 pcs of cut nightcrawlers 1/4" long. Usually you can see argulus and i do not see any.