He hasn't gotten any better since the last update. The fin rot isn't going away anymore, even with heat and a lot of water changes. I've been using stress coat and water conditioner each water change, and after a week or so of no AQ salt, I started again to see if it made any improvement. So far, none. He's a little over two years, I believe. My sister got him over a year ago and I have no idea how old he was in the store, but she got him before they started selling them younger. I'm going assume he's at least two years old. I don't really know what else to do for him.
My mother won't let my sister keep him in a tank with a heater in her room, so I've tried to wean him off of the 84 degrees I've had him at and gradually lowered it down to 78 degrees. I put him in with a different heater now, so it should keep the tank 78 degrees. It's preset, but it's working at least.
I don't know what else to do for him. Should I just give up and hope water changes make him better?