Marigold Lyretail Swordtail
The Marigold Lyretail Swordtail (Xiphophorus helleri) is a spectacular and elegant livebearer known for its brilliant marigold orange coloration and distinctive lyre-shaped tail with extended rays. These stunning fish feature a vibrant golden-orange body that shines under aquarium lighting, complemented by an elaborate tail that creates a lyre-like appearance. Peaceful, active, and easy to care for, Marigold Lyretail Swordtails add both intense color and sophistication to any community aquarium. Their hardy nature and majestic appearance make them perfect centerpiece fish for peaceful setups.
Care Sheet – Marigold Lyretail Swordtail (Xiphophorus helleri)
Temperament
Peaceful, active, and social
Best kept in groups with mixed genders or single-sex groups
Adult Size
Males: 4–5 inches (including sword), Females: 5–6 inches
Minimum Tank Size
20 gallons for a small group
Water Parameters
Temperature: 70–82°F
pH: 7.0–8.0 (prefers slightly alkaline water)
Hardness: Moderate to hard (10–20 dGH)
Ammonia/Nitrite: 0 ppm
Nitrate: <20–30 ppm
Diet
Omnivorous
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Feed a varied diet:
High-quality flakes or pellets
Frozen or live foods: brine shrimp, daphnia
Vegetable matter and color-enhancing foods
Feed small amounts 1–2 times daily
Behavior & Compatibility
Excellent for peaceful community tanks
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Compatible with:
Other livebearers, larger tetras, rasboras
Corydoras and other peaceful bottom dwellers
Peaceful gouramis and rainbowfish
Avoid aggressive or fin-nipping species
Aquarium Setup
Planted tanks with open swimming space
Gentle water flow to avoid damaging delicate tails
Moderate to bright lighting to showcase colors
Clean, well-maintained water
Care Level
Easy
Very hardy and beginner-friendly
Lifespan
3–5 years with proper care
Special Notes
Brilliant marigold orange coloration with elegant lyre-shaped tail
Males develop sword extension and elaborate tail rays
Breed readily in home aquariums
Stunning centerpiece fish for community tanks
