Xenopus x Fish ... HELP!

[julianasphynx]

Hi!
I've got a 3-year-old male frog (Xenopus laevis) that sings a lot.

He lives by himself in a tank, but I've been thinking of making a much larger one and adding fish. I know he'd eat any fish there smaller than his mouth (or nearly the same size), so I thought: could this frog live with carps, plecs, or goldfish?

I've seen some videos of common tanks with many species along the frogs. Could you please tell me of some species that get along well?

I'd like some opinion before I risk anything, since my boy is my love and I don't want to risk his life or the future fish's.

Thanks.