So we just put Handsome Jack in his tank after a water change, and about 5 minutes later we went to check on him and he had something huge hanging out of him. Seriously massive. It looked like a big brown chunk of dirt on a brown string hanging out of him. He was swimming frantically and flaring madly at us. We thought maybe he was really sick and crapped out his intestines. We started panicking. And then it fell off. Heart almost stopped. Then he stopped swimming frantically, stopped flaring, and was acting normal. It was like, severe constipation or an impacted turd or something. THESE FISH WANT US TO DIE OF HEART ATTACKS I SWEAR.
In the picture here, it's the thing that looks like a small bullrush.