Swordtail fish is pretty popular among the aquarists due to its bold red and black color combination. They are named so due to showy extension on the lower part of the tail that resembles a sword. It makes the fish look classy and sophisticated, which enhances the appearance of the tank manifold. Red swordtail fish will be a wonderful addition to a community aquarium fish as it is peaceful in nature, require little maintenance, and adds to the glory of the aquarium with its variant bold and lively colors. Although there are other variants in swordtail fish too like Pineapple, Neon, Black Nubain Swordtail fish, Red Swordtail Fish looks extremely beautiful.