Hello, I won my Goldfish 5 years ago at a carnival. He’s in a 50 Gallon tank and is now grown quite large. About two weeks ago, we thought he had swim bladder disease, as he was spinning in circles around the tank and couldn’t seem to swim right. We thought he would pass away for sure since his sickness caused him to not be able to swim properly. Now it’s been over two weeks, and he has been doing nothing but sitting at the bottom of the tank, breathing heavily. He won’t keep any food down when we try to feed him. I feel so horrible, I’ve never seen a fish suffer this long. I don’t want to take his life because we’ve had him so long but he does seem like he’s in pain. Maybe he’s just injured and can’t swim and he’s feeling fine? The water levels are good. And we’ve changed 50% of the tank about three times since all of this happened with no luck. How do I get my poor fishy out of his misery? Do I have to just watch him starve to death? It’s making me quite sad. Please help me find a solution or at least some comfort for both him and me!