The Blue Emperor Tetra (Nematobrycon palmeri), known for its shimmering blue hue and graceful swimming pattern, is a standout addition to any freshwater aquarium. At just 2.8cm, this young specimen will still grow slightly larger, developing even deeper colors and a more striking appearance with age. It is a favorite among aquarists due to its peaceful nature, beautiful coloration, and compatibility with a wide range of tank mates. Perfect for both beginner and experienced fishkeepers, the Blue Emperor Tetra thrives in a well-maintained, planted tank environment.

Key Features:

• Scientific Name: Nematobrycon palmeri

• Size: ~2.8cm (can grow up to 4–5cm in adulthood)

• Lifespan: 3–5 years with proper care

• Temperament: Peaceful and social

• Difficulty Level: Easy to Moderate

• Origin: Colombia (South America)

• Ideal for: Planted tanks, community aquariums

✅ Water Conditions

Maintaining the correct water parameters is crucial for keeping your Blue Emperor Tetras healthy and vibrant:

• Temperature: 23–27°C (73–81°F)

• pH Range: 6.0–7.5

• Hardness: 3–10 dGH

• Tank Size: Minimum 10 gallons (larger preferred for groups)

• Water Type: Freshwater, with soft, slightly acidic to neutral water

• Filtration: Gentle flow preferred; strong currents may stress them

• Lighting: Moderate; enhances their iridescent blue coloration

They are especially comfortable in tanks with live plants, driftwood, and dimmer lighting which mimics their natural habitat.

🐟 Tank Mates

Blue Emperor Tetras are peaceful schooling fish that do best in groups of at least 6–8 of their own kind. When kept in proper numbers, they display more natural behaviors and vibrant coloration.

Compatible tank mates include:

• Other small peaceful tetras (e.g., Neon, Cardinal, Rummy Nose)

• Corydoras catfish

• Dwarf gouramis (non-aggressive types)

• Harlequin Rasboras

• Otocinclus

• Shrimp (if the tetra size is not too large)

Avoid:

• Aggressive or fin-nipping species (e.g., Tiger Barbs)

• Very large fish that may view them as food

🍽️ Feeding Habits

Blue Emperor Tetras are omnivorous and not picky eaters. To ensure optimal health and coloration, feed them a varied diet including:

• High-quality micro or nano pellet food

• Flake food designed for small tropical fish

• Live or frozen treats like daphnia, brine shrimp, or bloodworms

• Occasionally, vegetable-based foods (e.g., spirulina flakes)

Feed 1–2 times per day, offering only what they can consume in under 2 minutes to prevent overfeeding and water quality issues.

🧼 Care and Maintenance

• Perform regular water changes (20–30% weekly) to keep the water parameters stable and reduce waste buildup.

• Keep them in planted aquariums with hiding spots to reduce stress.

• A secure lid is important—they may jump if startled.

• Observe for signs of illness like clamped fins, discoloration, or erratic swimming, which could indicate poor water quality or disease.

• Use a gentle filter and monitor ammonia/nitrite/nitrate levels frequently.

🌿 Why Choose the Blue Emperor Tetra?

Whether you're building a biotope setup or just want a visually striking, peaceful addition to your tank, the Blue Emperor Tetra is a superb choice. Its brilliant blue hue, easygoing nature, and graceful schooling behavior make it a favorite among aquarists who want a stunning yet low-maintenance fish.

Bring life and color to your aquarium—order your Blue Emperor Tetras today!