Description

Yellow Crystal Discus (Symphysodon aequifasciatus)

📌 Basic Info

• Scientific Name: Symphysodon aequifasciatus

• Common Names: Yellow Crystal Discus, Golden Yellow Discus, Lemon Crystal Discus

• Family: Cichlidae (Cichlid Family)

• Order: Cichliformes

• Origin: Captive-bred hybrid variety selectively developed from Golden and Albino Discus strains; derived from wild Amazon River species.

• Size: Up to 7–8 inches (18–20 cm) in captivity

• Lifespan: 10 – 15 years

• Tank Zone: Mid to upper levels

🌊 Water Parameters

• TDS: 80 – 200 ppm

• pH: 6.0 – 7.0

• Temperature: 28 – 31°C (82 – 88°F)

• Hardness: 3 – 10 dGH

🐟 Characteristics

• Body: Classic round, laterally compressed discus body with wide fins and perfect symmetry.

• Coloration: Bright crystal-yellow body with a semi-transparent, golden glow under aquarium lighting. The color is uniform from head to tail with a slight pearlescent shine on the sides.

• Fins: Clear to pale yellow with a subtle blue or white rim in some individuals.

• Eyes: Deep red or ruby red, contrasting beautifully with the golden body.

• Behavior: Calm and graceful; loves swimming in open, peaceful aquariums.

• Nature: Peaceful but delicate — thrives best in stable, soft, and clean water.

• Special Feature: Its pure translucent yellow coloration and glassy finish give it the name “Crystal,” making it a premium show-grade discus variety.

🍽️ Food

• Type: Omnivorous with a focus on protein

• Diet: Beef heart mix, bloodworms, brine shrimp, high-quality discus pellets, and color-enhancing flakes.

• Feeding Frequency: 2 – 3 times daily in small, clean portions.

• Tip: Include carotenoid-rich foods and vitamins to enhance the golden-yellow sheen and maintain eye brightness.

🛠️ Maintenance

• Tank Size: Minimum 200 liters (55 gallons) for a pair or 300 liters (75 gallons) for a small group.

• Filtration: High-quality biological filtration with minimal current; discus prefer calm water.

• Substrate: Bare-bottom or fine white sand for a clean, bright look.

• Decor: Driftwood, live plants (like Amazon Sword or Java Fern), and shaded resting areas.

• Lighting: Moderate to soft lighting brings out the natural crystal-yellow shine.

• Water Change: 30–40% daily or every alternate day to maintain clarity and color.

👥 Social Behavior

• Group Size: Best kept in groups of 5–6 for comfort and natural schooling.

• Tank Mates: Ideal with peaceful species like cardinal tetras, rummy nose tetras, corydoras, and small plecos.

• Avoid: Aggressive or fin-nipping fish.

• Compatibility Note: Thrives in species-only or calm community aquariums with matching soft-water parameters.

✅ Do’s
• Keep water warm, soft, and clean.
• Feed a balanced, high-quality diet rich in natural color enhancers.
• Maintain gentle lighting to preserve color vibrancy.
• Provide driftwood and shaded areas for security.

❌ Don’ts
• Don’t expose to bright, harsh light for long durations.
• Don’t mix with aggressive or large cichlids.
• Don’t skip frequent water changes — clarity impacts color quality.

⭐ Quick Tips
The Yellow Crystal Discus is a radiant, show-quality variety known for its glowing golden body and peaceful demeanor. Its bright, jewel-like coloration adds warmth and elegance to any aquarium, making it a favorite among collectors and hobbyists seeking a refined and visually stunning discus strain.