Live Fish – Assorted Swordtails – 4.5cm

$6.50

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Description

Swordtail fish (Xiphophorus hellerii) are colorful, active, and adaptable freshwater fish known for their distinctive elongated tail fin in males and ease of care in aquariums.

Appearance and Size

Swordtails are medium-sized, laterally compressed fish with streamlined body and slightly curved back. Adult males typically grow to 3–3.5 inches, while females are larger at 4–5 inches. The most defining feature is the male’s elongated lower caudal fin, resembling sword, which can be as long as the body itself. Females lack this “sword” and are easier to distinguish. Swordtails come in wide variety of colors and patterns due to selective breeding, including green, red, and hybrid morphs, making them visually striking in aquariums. 

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Behavior and Temperament

Swordtails are active swimmers that enjoy open spaces and planted areas. They are social and thrive in groups, though males can be territorial, so ratio of one male to two or three females is recommended to reduce aggression. They are generally peaceful and can coexist with other compatible community fish. Swordtails are prolific livebearers, giving birth to fully formed fry, which makes them popular among beginner and experienced aquarists alike. 

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Habitat and Adaptability

Native to North and Central America, particularly from Veracruz, Mexico to northwestern Honduras, swordtails inhabit rivers, streams, and ponds with varying water flow, vegetation, and salinity. They are highly adaptable and can survive in diverse freshwater environments, including slightly brackish water up to 15 ppt. Their flexibility has allowed them to establish populations in many nonnative regions worldwide due to aquarium releases. 

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Care Requirements

Swordtails are hardy and suitable for beginners. They thrive in aquariums with temperatures between 65–82°F (18–28°C) and pH of 7.0–8.3. tank of at least 20 gallons is recommended, with ample swimming space and live plants. They are omnivorous, eating flake foods, live or frozen foods, and occasional plant matter like algae wafers. Regular water changes and monitoring for common fish diseases help maintain their health. 

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Lifespan

With proper care, swordtails typically live 3–5 years, though some may live longer in optimal conditions. Their ease of care, vibrant colors, and active nature have made them staple in the aquarium hobby for decades. 

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