Seriously. The first time I saw it I thought he'd swallowed a pebble or something, or had some kind of blockage, so I didn't feed for 2 days and the huge bulge disappeared. But then I fed the fish and sure enough he just ate ate ate. He gets a bulging belly like a catfish. Funny thing is there are 2 of them, bought at the same time and place, and the other one is a more "normal" eater. Long term can this be bad for him? I really can't cut back on his food because his tankmates (jurupari, festivums, ABKnife) need to get theirs, too.