I'm thinking about getting a box of US bred cold hardy Nymphs, they come in a variety of colors.
From "Goldfish Varieties and Tropical Aquarium Fishes" William T Innes 1917:
"The Japanese Nymph Goldfish:
The Nymph is virtually a single-tailed Fringetail (what he calls fantail/ryukin/veiltail, he calls pearlscales Barnacled). The anal fin and tail are single. The latter, instead of drooping, should be carried out straight, and well spread. This is usually a "sport" from the fringetail stock. Although seldom deliberately bred, fine specimens are very attractive in an aquarium and are often retained by fanciers. In their active movements, as well in points of conformation, they make a pleasing contrast with the double-tailed varieties. One of the principal features is the dorsal fin, which should be large and carried quite erect, as described for the fringetail. The body requirements are also the same."
