Green Swordtail Fish
The Green Swordtail (Xiphophorus hellerii) is a classic freshwater livebearer prized for its sleek greenish sheen, active personality, and signature sword-like tail extension in males. Hardy, peaceful, and easy to care for, this species is an excellent choice for both beginner and experienced aquarists.
Green Swordtails adapt well to community aquariums and planted tanks. Their lively swimming behavior, peaceful temperament, and ease of breeding make them a popular choice for livebearer setups and freshwater community displays.
Key Features
- Distinctive Swordtail: Males develop a long, sword-like extension on the caudal fin
- Classic Green Coloration: Subtle metallic green body with natural highlights
- Hardy & Beginner-Friendly: Great for new aquarists and community tanks
- Livebearer: Breeds readily in aquariums and gives birth to live young
- Peaceful & Active: Ideal for planted community aquariums
Care Quick Facts
- Scientific Name: Xiphophorus hellerii
- Common Name: Green Swordtail
- Origin: Central America, from Mexico to Honduras
- Care Level: Easy
- Adult Size: 3–5 inches
- Lifespan: 3–5 years
- Temperament: Peaceful, active livebearer
- Diet: Omnivore; flakes, pellets, algae-based foods, live foods, and frozen foods
- Minimum Tank Size: 20+ gallons recommended
- Temperature: 72–82°F
- pH: 7.0–8.3
- Water Hardness: Moderate to hard water preferred
Tank Setup
Green Swordtails do best in a well-filtered freshwater aquarium with open swimming space and live or artificial plants for cover. They are active fish that appreciate stable water parameters, regular maintenance, and plenty of room to move.
Tank Mates
Green Swordtails are peaceful community fish and do well with other livebearers and non-aggressive freshwater species. Suitable tank mates may include guppies, mollies, platies, peaceful tetras, rasboras, danios, corydoras, and other community fish.
FAQ
Are Green Swordtails beginner-friendly?
Yes. Green Swordtails are hardy, adaptable, and easy to care for, making them one of the best starter fish for freshwater aquariums.
Can Green Swordtails live in community tanks?
Yes. They are peaceful and usually do well with guppies, mollies, platies, peaceful tetras, rasboras, danios, and corydoras.
Do I need a ratio of males to females?
Yes. A good ratio is one male to two or three females. This helps reduce stress on females and encourages more natural behavior.
Do Green Swordtails breed easily?
Yes. Green Swordtails are livebearers and can breed readily in aquariums. Dense plants or breeding cover can help protect fry if you want to raise the babies.
Available now at Tropical Treasures Wyo — your freshwater fish store in Cheyenne, Wyoming. We proudly offer healthy freshwater fish, live plants, aquarium supplies, and expert advice for hobbyists throughout Wyoming and Northern Colorado.
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