The Koi Sanke Swordtail, also known as the Sanke Swordtail Fish or Koi Swordtail, is a spectacular livebearer that brings vibrant color and elegance to freshwater aquariums. Resembling the prized patterns of Japanese Koi fish, this tricolor swordtail displays a dazzling mix of red, white, and black across its body, complemented by a sleek, elongated tail fin that resembles a sword. Hardy, active, and peaceful, the Koi Sanke Swordtail fish is perfect for both beginner and experienced aquarists seeking a visually striking community fish. Originating from selectively bred Swordtails (Xiphophorus hellerii), the Koi Sanke Swordtail combines the beauty of koi coloration with the lively behavior of a swordtail. These fish are native to Central America’s warm, slow-moving waters, where they thrive in planted environments. In aquariums, they are active swimmers, often seen exploring all levels of the tank while displaying their elegant tails and shimmering hues. A full-grown Koi Sanke Swordtail reaches around 4–5 inches (10–12 cm) in length, with males featuring the characteristic sword-like tail extension. The stunning sanke koi swordtail pattern features bold red and orange patches against a clean white body, accented by irregular black markings, earning them the nickname “koi swordtails” among aquarists. Females are slightly larger and rounder, making them equally impressive in community aquariums. Koi Swordtails are peaceful, energetic, and social fish that do best in groups. They thrive in community aquariums with other non-aggressive species such as Mollies, Platies, Guppies, Tetras, and Corydoras catfish. A Koi Sanke Swordtail tank should include open swimming areas, dense plants, and gentle filtration. As livebearers, females may produce fry regularly, so providing plants or breeding grass helps protect the young. At our Splashy Fish tropical fish store, our Koi Sanke 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: Striking red, white, and black “koi-style” tricolor pattern Active, peaceful, and great for community tanks Easy to care for and ideal for beginners Males feature elegant sword-like tails Adds vibrant motion and contrast to planted aquariums RECOMMENDED TANK PARAMETERS: Tank Size: Minimum 20 gallons Temperature: 72°–80°F (22°–27°C) pH: 7.0–8.0 Hardness: 10–25 dGH Filtration: Moderate flow with regular water changes to maintain clarity and stability CARE GUIDELINES: Diet: Omnivorous. Feed a mix of high-quality flakes, micro pellets, frozen foods (brine shrimp, daphnia, bloodworms), and vegetable-based foods like spirulina to enhance coloration. Tank Setup: Use a planted setup with open swimming areas and gentle current. Add floating plants or dense foliage to give females and fry hiding spots. Behavior: Peaceful and curious. Males may show mild sparring behavior but are generally non-aggressive.
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