Didn’t notice this in the store so wondering if it got it when they were trying to catch him. He didn’t make it easy on them. In any case, it is very slightly raised. Currently treating kana and metro in food as a QT mate appeared to have a distended belly but this is external. Not sure if I can/should treat the tank in addition to the food? It’s the dark green spot. Fish is eating extremely well and otherwise acting fine though I’ve seen him flash one time.