The Gold Comet Swordtail is a brilliant freshwater fish that brings a radiant burst of golden-yellow color to any aquarium. Beloved by aquarists for its hardiness, peaceful temperament, and lively swimming behavior, the Gold Comet Swordtail is a popular choice for both beginners and seasoned hobbyists. Its sleek body and signature “sword” tail extension on males make it a captivating addition to community tanks.

Key Features

• Vibrant golden-yellow body with shimmering comet-like shine.

• Hardy, adaptable, and perfect for beginner aquarists.

• Peaceful nature makes them ideal for community tanks.

• Active swimmers that bring constant motion and brightness.

• Livebearer species, offering exciting breeding opportunities.

Appearance

• Males feature a distinct elongated lower tail fin (the “sword”), slimmer body, and more vivid coloration.

• Females are rounder, larger, and usually lack the sword extension.

• Average adult size: 4–6 inches, with females typically larger.

• Their metallic golden body gives a comet-like glowing appearance under aquarium lighting.

Water Conditions & Tank Setup

To keep Gold Comet Swordtails healthy and vibrant, maintain these conditions:

• Tank Size: Minimum 20 gallons; larger tanks allow for group keeping.

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

• pH: 7.0 – 8.3 (slightly alkaline).

• Hardness: 12 – 30 dGH.

• Filtration: Clean, well-oxygenated water with efficient filtration.

• Aquascaping: Mix of open swimming areas and planted zones. Plants like Hornwort, Vallisneria, and Java Fern provide hiding and breeding spots.

Behavior & Tank Mates

Gold Comet Swordtails are peaceful, social fish that thrive in community aquariums. However, males may occasionally display territorial behavior.

• Best kept with 1 male and 2–3 females to reduce stress.

• Compatible with:

  • Guppies

  • Mollies

  • Platies

  • Corydoras catfish

  • Peaceful Tetras

  • Gouramis (non-aggressive types)

• Avoid aggressive fish and fin-nippers like large Cichlids or Tiger Barbs.

Feeding Habits

Being omnivores, Gold Comet Swordtails enjoy a varied diet:

• High-quality flake or pellet food as a staple.

• Supplement with frozen or live foods like brine shrimp, bloodworms, and daphnia.

• Include occasional plant matter such as blanched spinach, lettuce, or spirulina-based foods.

• Feed 2–3 small meals per day instead of one large portion.

Breeding & Care

• Livebearer species – females give birth to 20–80 fry every 4–6 weeks.

• Fry are at risk of being eaten, so provide dense plants or a breeding box for protection.

• Maintain weekly water changes (20–30%) to ensure vibrant color and good health.

• Gold Comet Swordtails are hardy, but ensure proper care to prevent common issues like Ich or fin rot.

Why Choose the Gold Comet Swordtail?

The Gold Comet Swordtail is more than just a decorative fish – it’s hardy, adaptable, and endlessly active, making it an ideal choice for aquarists of all levels. With their golden glow and lively nature, they add elegance and energy to any freshwater aquarium.

✨ A shining star in any tank, the Gold Comet Swordtail is the perfect blend of beauty, resilience, and peaceful community living.