I have a 3inch EBJD in my 55gallon, he has been doing fine for over a month. He has never been a picky eater, recently I noticed that he has been sticking to one corner of the tank. He still eats but he just sits on one side of the tank, and oddly enough my geophagus sit thier with him. After a while I looked and noticed he had white stringy poop, he still seems to be eating normally. I thought I would confirm on how to go about treating him, my plan was just to try feeding him peas. Unless the situation escalates, please let me know if you have any ideas or need any other information to help figure out whats going on.