Description
Neon Rainbow
📌 Basic Info
Scientific Name: Melanotaenia praecox
Common Names: Neon Rainbow, Dwarf Neon Rainbowfish
Family: Melanotaeniidae (Rainbowfish Family)
Order: Atheriniformes
Origin: Australia — mainly in West Papua and nearby freshwater rivers
Size: Up to 2.5 inches (6–7 cm) in captivity
Lifespan: 4 – 6 years
Tank Zone: Mid to upper water column
🌊 Water Parameters
TDS: 100 – 250 ppm
pH: 6.5 – 7.5
Temperature: 24 – 28°C (75 – 82°F)
Hardness: 5 – 15 dGH
🐟 Characteristics
Body: Small, laterally compressed body with smooth scales.
Coloration: Metallic blue-green body with bright neon reflections; red or orange fins in males.
Fins: Dorsal and anal fins slightly elongated; caudal fin forked.
Behavior: Peaceful, active schooling fish; very social.
Nature: Diurnal; swims in mid-water and prefers open areas with plants.
Special Feature: Brilliant iridescent colors that intensify in well-maintained schools.
🍽️ Food
Type: Omnivorous
Diet: Flakes, micro-pellets, live/frozen foods like brine shrimp, daphnia, and bloodworms.
Feeding Frequency: Once or twice daily.
Tip: Feed a varied diet to maintain vivid coloration and healthy growth.
🛠️ Maintenance
Tank Size: Minimum 60 liters (15 gallons) for a small school.
Filtration: Moderate filtration; gentle to moderate water flow.
Substrate: Sand or fine gravel; smooth surface recommended.
Decor: Plants, driftwood, and open swimming areas; floating plants preferred.
Lighting: Moderate to bright; enhances neon coloration.
Water Change: 20–25% weekly.
👥 Social Behavior
Group Size: Best kept in schools of 6 or more.
Tank Mates: Peaceful community fish like tetras, guppies, rasboras, and small gouramis.
Avoid: Aggressive or fin-nipping species.
Compatibility Note: Very social; stress occurs if kept alone or in too small groups.
✅ Do’s
Keep in schools to enhance color and behavior.
Provide plants and open swimming areas.
Maintain clean water with regular changes.
Feed a varied diet including live and frozen foods.
❌ Don’ts
Don’t keep singly; they are schooling fish.
Don’t house with aggressive species.
Don’t neglect water quality; sensitive to ammonia/nitrite spikes.
⭐ Quick Tips
Neon Rainbowfish are peaceful, vibrant, and active freshwater fish. Their shimmering neon colors and schooling behavior make them ideal for community tanks, especially in planted setups where their reflective scales create a dazzling display.
