Green Swordtail (Xiphophorus hellerii) The Green Swordtail is a classic and natural-looking variety known for its olive-green body, subtle iridescence, and the long “sword” extension on males. It’s hardy, active, and a great addition to community aquariums. Quick Care Details: Size: 3–4 inches Tank Size: 20+ gallons Temperament: Peaceful but active Diet: Omnivore (flakes, pellets, algae, frozen foods) Lifespan: 3–5 years Tank Setup: Best kept in a planted aquarium with plenty of open swimming space. Moderate flow and stable water conditions are ideal. A lid is recommended, as they can jump. Behavior: Very active swimmers that stay near the middle and top of the tank. Males may show mild aggression toward each other, so provide space and maintain a proper ratio. Notes: Assortment includes a mix of colors and patterns; Exact colors and markings will vary; Stock photo used; fish received may differ.