Sounds like he had a long and exciting life, though!

I had a fish once. Just a carnival goldfish named Three Dog Night (3D for short); he lived in a bowl in my room. He lasted several years, which is sort of surprising because I'm not especially good at changing water and stuff like that, though I never forgot to feed him. And it sounds as if you'd had Schwa long enough to get really attached, which (as you note) isn't so easy with fish.