Koi wagtail swordtail 3-4cm

The Koi Wagtail Swordtail (Xiphophorus hellerii) is a striking livebearer fish that combines the elegant sword-shaped tail of Swordtails with the vibrant koi-inspired coloration and contrasting black tail. At 3–4 cm when sold, this species grows up to 10–12 cm as an adult, making it an ideal addition to community aquariums of all sizes.

Known for its peaceful nature, active swimming, and hardy temperament, the Koi Wagtail Swordtail is perfect for beginners and seasoned aquarists alike. Its vivid orange, white, and black color pattern adds a bold pop of color to any freshwater setup.

✅ Key Features

• Size: 3–4 cm (juvenile), up to 12 cm adult

• Temperament: Peaceful and active

• Care Level: Easy, beginner-friendly

• Lifespan: 3–5 years

• Special Trait: Livebearer with koi-like colors and signature swordtail fin in males

Care Guide for Koi Wagtail Swordtail

✅ Tank Requirements

• Minimum Tank Size: 75 liters (20 gallons) for a small group

• Aquascape: Include plants, rocks, and open swimming space

• Lighting: Moderate to bright; brings out vibrant coloration

• Cover: Tight-fitting lid – they can jump

• Grouping: Best kept in groups, with 1 male to 2–3 females to reduce stress

✅ Water Parameters

• Temperature: 22°C – 28°C (72°F – 82°F)

• pH Level: 7.0 – 8.3 (slightly alkaline preferred)

• Water Hardness: 10 – 30 dGH

• Filtration: Moderate; maintain good water flow and oxygenation

• Water Changes: 25–30% weekly for stability

✅ Feeding Habits

Koi Wagtail Swordtails are omnivorous and thrive on a varied diet.

• Recommended Diet:

  • High-quality flakes and micro pellets

  • Live or frozen foods (brine shrimp, bloodworms, daphnia)

  • Vegetable matter (blanched zucchini, spinach)

Feed small portions 2–3 times daily to enhance color and vitality.

✅ Tank Mates

Koi Wagtail Swordtails are peaceful community fish and mix well with other calm species.

Ideal Tank Mates:

• Guppies, Mollies, and Platies

• Corydoras catfish

• Small Tetras (Neon, Ember)

• Peaceful Rasboras

• Snails and shrimp (with caution)

Avoid aggressive or fin-nipping species.

✅ Behavior & Breeding

• Behavior: Active swimmers; males display their elongated swordtail

• Breeding: Livebearers; females give birth to free-swimming fry every 4–6 weeks

• Tip: Provide dense plants or breeding traps to protect fry from adult fish

Why Choose Koi Wagtail Swordtail?

• Unique koi-inspired color pattern for vibrant aquariums

• Hardy and beginner-friendly, perfect for community tanks

• Active and social species with easy care requirements

• Breeds readily, great for hobbyists interested in livebearers

✅ Ideal for community tanks and aquascaped setups
✅ A bright, beautiful fish that adds life and color to any aquarium