Man! What are you getting rid of my old fish for!
He looks like he's still fat and healthy. That guy was always a giant pig.
FYI everyone, this is what a PETCO fish can end up looking like. I raised him on NLS and bloodworms until a couple months ago when I gave him to sizzlahr. He's never had parasite issues that are common to GT's, and he's always super healthy.
And it's surprising that he doesn't like your JD. He grew up with one.
Anyway, up for an awesome fish. He's got a TON of personality. If I had the tank space, I'd take him back.