China is considered the motherland of aquarium goldfish, bred over centuries into rare forms. Now tariffs have some U.S. sellers of these goldfish in a tailspin.

What do goldfish have to do with the global trade balance? That's a question that has Ken Fischer reeling. He sells rare goldfish. And goldfish — the live pet, not the snack food — are tucked in on ...

China is considered the motherland of aquarium goldfish, bred over centuries into rare forms. Now tariffs have some U.S. sellers of these goldfish in a tailspin.