Description
Glowlight Blue Zebra Danio (Danio rerio var. GloFish)
📌 Basic Info
Scientific Name: Danio rerio (Glowlight Blue variant)
Family: Cyprinidae
Origin: South Asia (selectively bred and genetically modified for vibrant coloration)
Size: 1.5 – 2 inches (4 – 5 cm)
Lifespan: 3 – 5 years
Tank Zone: Mid & top dwellers
🌊 Water Parameters
TDS: 100 – 250 ppm
pH: 6.5 – 7.5
Temperature: 22 – 28°C (72 – 82°F)
Hardness: 5 – 12 dGH
🐟 Characteristics
Bright neon-blue body with glowing horizontal stripes.
Peaceful, active, and hardy – beginner-friendly.
Shoaling fish; prefers groups of 5 or more.
Can jump – a secure tank lid is recommended.
🍽️ Food
Type: Omnivorous
Diet: Flakes, micro-pellets, live/frozen foods (daphnia, brine shrimp, bloodworms).
Feeding: 2–3 small meals daily; avoid overfeeding.
🛠️ Maintenance
Tank Size: Minimum 10 gallons for a small school.
Filtration: Moderate flow, well-oxygenated water.
Decor: Plants, driftwood, and open swimming areas to highlight glow.
Water Change: 25% weekly.
👥 Social Behavior
Minimum Group Size: 5–6 or more (shoaling fish).
Tank Mates: Other small peaceful fish – Guppies, Rasboras, Corydoras, small Barbs.
Avoid: Large or aggressive species that may nip fins.
✅ Do’s
Keep in schools to reduce stress and enhance color display.
Provide hiding spots with plants or décor.
Maintain clean, well-oxygenated water.
❌ Don’ts
Don’t keep alone – they become stressed and shy.
Don’t mix with aggressive fish.
Avoid overcrowding the tank.
⭐ Quick Tips
Neon-blue glow makes them highly attractive in community tanks.
Hardy, peaceful, and very active swimmers.
Glow is enhanced under LED or actinic lighting.


