I went to my boyfriend's Tuesday night and didn't get back until this morning. Before I left, I told my boys to behave and "no fighting", like I always do. Well, Cheep-Cheep (my biggest and oldest boy) apparently got into trouble because when I arrived home this morning, I was greeted by a betta with horribly tattered and ripped fins.
He is in the section with the filter, and though I baffled the filter flow, I hadn't put a sponge on the intake. I noticed, once I put him in there, that he would sometimes swim up to the intake and let himself get sucked onto it, but he would always swim away okay. Apparently that is not the case any more.
It's not the waterfall decor because I checked it before I put it in there, and there aren't any sharp edges, even inside. I have since baffled the intake with an intake sponge. I am just so mad at myself for not taking care of it sooner and thinking it wouldn't be a problem. He had such gorgeous fins! /cry