My goldfish has been sick for the past couple of months and I believe it is swim bladder disease, he just can't stay straight but mostly at night. I treated him with Maracyn Two for a week and that seemed to be no good.
Anyways, right now he has no strength whatsoever to stay straight, if he wasn't in my net he'd fall straight down. I've tried feeding him both dried food and blood worms, but he'll just spit it right out. Also, every time he breathes it is as if his heart gave one big strong thump.
Tank is a 55G, temperature is 75* and all water stats are normal. Please help me out, I've grown attached to this fish ever since I got him a year ago and don't want to see him die.