Description
Yellow Butterfly Discus Fish (Symphysodon aequifasciatus)
📌 Basic Info
Scientific Name: Symphysodon aequifasciatus
Common Names: Yellow Butterfly Discus, Golden Butterfly Discus, Lemon Discus
Family: Cichlidae (Cichlid Family)
Order: Cichliformes
Origin: Captive-bred hybrid developed in Southeast Asia, selectively bred from yellow and albino discus lines.
Size: 6 – 8 inches (15 – 20 cm)
Lifespan: 10 – 15 years
Tank Zone: Middle and upper levels
🌊 Water Parameters
Temperature: 28 – 31°C (82 – 88°F)
pH: 6.0 – 7.0
Hardness: 3 – 8 dGH
TDS: 80 – 150 ppm
🐟 Characteristics
Body: Rounded, smooth-bodied discus with a wide dorsal-to-anal fin spread.
Coloration: Bright lemon-yellow or golden-yellow body with a subtle pearlescent sheen.
Pattern: Some individuals show light vertical bands or faint marbling, while others are solid yellow.
Fins: Transparent to golden-tinted fins that blend beautifully with the body color.
Eyes: Typically bright red, providing striking contrast.
Behavior: Calm, social, and slightly shy — prefers stable, warm water and peaceful tankmates.
Special Feature: Known for its vivid yellow glow and graceful swimming style — gives an elegant, “butterfly-like” appearance in the tank.
🍽️ Diet
Type: Omnivorous
Preferred Food: High-quality discus pellets, beef heart mix, bloodworms, and brine shrimp.
Feeding Frequency: 2–3 small meals per day.
Tip: Include color-enhancing foods with carotenoids (like spirulina or astaxanthin) to maintain vibrant yellow coloration.
🛠️ Tank Setup & Maintenance
Tank Size: Minimum 250 liters (65 gallons) for a small group.
Filtration: Gentle flow with efficient biological and mechanical filtration.
Substrate: Bare bottom or fine sand for easy cleaning.
Decor: Driftwood, smooth stones, and live plants such as Amazon swords or anubias.
Lighting: Moderate, slightly warm-toned light enhances the golden hues.
Water Change: 30–40% every 2–3 days for optimal clarity and health.
👥 Social Behavior
Group Size: Best kept in groups of 5–6.
Tank Mates: Peaceful species like tetras, corydoras, and other non-aggressive discus varieties.
Avoid: Fin-nippers or overly active fish.
Compatibility: Excellent for community discus setups with contrasting colors (e.g., red or blue strains).
✅ Do’s
• Maintain soft, warm, and clean water.
• Feed a protein- and vitamin-rich diet.
• Provide subdued lighting to highlight coloration.
• Keep consistent tank parameters.
❌ Don’ts
• Avoid sudden changes in pH or temperature.
• Don’t house with aggressive or fast-swimming fish.
• Don’t skip regular water changes — affects color vibrancy.
⭐ Quick Tips
The Yellow Butterfly Discus Fish is admired for its bright golden body and graceful swimming, resembling the elegance of a butterfly. A stunning addition to any discus collection, it brings warmth, contrast, and vibrancy to aquariums — ideal for both show tanks and breeding enthusiasts.
