From left: With crimson tops contrasting regally against white, Tancho fish are named after the red-crowned crane; these Sarasa Ryukin specimens, of the Wakin variety, sport their calico look as a ...

YATOMI, Aichi Prefecture--A single goldfish fetched an eye-popping 10,000 yen ($76) at this year’s first auction at the Tokai ornamental fish wholesale market.