Congratulations to everyone who managed to derail yet another thread.. I'm sure there's more out there for you to offer your advice on - "that tank is too small", "you're feeding too much", "do you know how big that fish gets? I hope you have a pond" etc.
To the OP: I have NO idea what's going on with your Oscar but I'd love to see it (can we get a picture?) What're you doing to help it heal?
Wow. Where'd that come from? It's a conversation. He brought up powerfeeding..therefore part of the conversation. Some folks offered some rationale input. I think we are all waiting to see what a "cavernous hole" looks like on a fish's belly. From the way it was described, I'm surprised it's eating at all. So once again...pictures?