The Koi Kohaku Swordtail is a selectively bred variation of the classic Swordtail (Xiphophorus hellerii), known for its strong genetics and vivid coloration. Originating from warm freshwater streams in Central America, this hardy swordtail fish adapts easily to home aquariums and thrives in planted tanks. Its koi-like white body with vibrant red-orange patches gives it an ornamental appearance reminiscent of Japanese pond fish, but in a tropical aquarium setting. A full-grown Koi Kohaku Swordtail typically reaches 4–5 inches (10–12 cm) in length. Males display the signature sword-like extension on the lower lobe of the tail fin, while females are rounder and slightly larger. The Kohaku Koi Swordtail fish features vivid red-orange markings contrasted against a clean white background, a pattern inspired by the classic Kohaku Koi. The lyretail variant enhances this beauty even more, with elegant, flowing fins that add extra visual appeal to community aquariums. Koi Kohaku Swordtails are peaceful, active, and social livebearers that thrive in groups. They are excellent for community aquariums with other non-aggressive fish such as Guppies, Mollies, Platies, Rasboras, and Corydoras Catfish. A Koi Swordtail tank should provide open swimming areas, gentle filtration, and dense plants for cover. As livebearers, females may produce fry regularly, making them a great choice for beginner breeders or aquarists interested in observing natural behavior. At our Splashy Fish tropical fish store, our Koi Kohaku Swordtail for sale and other freshwater fish for sale are carefully selected and packed with love! Visit us to buy them online or at our aquarium store in Virginia for more betta fish for sale, freshwater shrimp for sale, live aquatic plants for sale, and aquarium supplies. WHAT YOU CAN EXPECT FROM THIS FISH: Distinctive red and white coloration inspired by Kohaku Koi Elegant sword-shaped tail (lyretail variation available) Peaceful, active swimmer ideal for community tanks Hardy and beginner-friendly tropical livebearer Adds movement, contrast, and beauty to planted aquariums RECOMMENDED TANK PARAMETERS: Tank Size: Minimum 20 gallons for small groups Temperature: 72°–80°F (22°–27°C) pH: 7.0–8.0 Hardness: 10–25 dGH Filtration: Gentle flow with clean, stable water conditions CARE GUIDELINES: Diet: Omnivorous. Offer a mix of premium flakes, micro pellets, frozen or live foods (brine shrimp, daphnia, bloodworms), and spirulina-based foods to enhance red pigmentation. Tank Setup: Combine live plants, driftwood, and open swimming areas. A secure lid is recommended, as Swordtails are known jumpers. Behavior: Peaceful and curious. Males may engage in harmless sparring during courtship, but they coexist well in community aquariums.
