The Tuxedo Red swordtail in the original sense is rarely found nowadays. However, no attention is paid to it. Today’s Tuxedo Red are simply red fish with a black tuxedo. The tuxedo is a black, rarely dark blue suit in which the jacket is a blazer without lapels.
The black color was introduced to the swordtail back in the 1930s. It came from wild platies, which brought this so-called seminigra coloration (semi: half, nigra: black) from nature. It turned out that the gene for seminigra could be transferred from the platy to the swordtail during crossbreeding.