The Red Phantom Tetra (Hyphessobrycon sweglesi) is a striking freshwater fish admired for its rich, deep red body and peaceful temperament. At about 2.5cm, this tetra showcases vivid crimson coloration with subtle black markings on its fins, making it a standout in planted and community aquariums. Native to slow-moving waters of Colombia and Venezuela, the Red Phantom thrives in soft, slightly acidic water conditions, mimicking its natural blackwater habitat.

Its calm nature and moderate activity level make it an excellent choice for aquarists seeking a vibrant yet tranquil addition to their peaceful freshwater setups.

🐠 Key Features:

• Scientific Name: Hyphessobrycon sweglesi

• Common Name: Red Phantom Tetra

• Size: 2.5cm (adult size)

• Lifespan: 3–5 years

• Temperament: Peaceful, schooling

• Difficulty Level: Easy to Moderate

• Origin: South America (Colombia, Venezuela)

• Best kept in groups of 6 or more

🌊 Water Conditions

Red Phantom Tetras prefer stable, soft, and slightly acidic water conditions.

• Temperature: 22–27°C (72–81°F)

• pH: 5.5–7.0

• Hardness: 1–8 dGH

• Tank Size: Minimum 15 gallons

• Water Type: Freshwater

• Filtration: Gentle filtration with moderate flow

• Lighting: Low to moderate; subdued lighting enhances their coloration

Adding driftwood, leaf litter, and dense plant cover helps replicate their natural environment.

🐟 Tank Mates

Thanks to their peaceful nature, Red Phantom Tetras fit well in calm community tanks.

Compatible tank mates:

• Other small tetras (Neon, Ember, Glowlight)

• Rasboras

• Corydoras catfish

• Otocinclus

• Peaceful dwarf gouramis

• Small shrimp and snails

Avoid:

• Aggressive or fin-nipping fish

• Large or boisterous species

Keeping them in groups of 6 or more encourages natural schooling and reduces stress.

🍽️ Feeding Habits

Red Phantom Tetras are omnivores and adapt well to various foods.

Recommended diet:

• High-quality flakes or micro pellets

• Live or frozen foods such as bloodworms, daphnia, brine shrimp

• Freeze-dried tubifex or krill

• Occasional vegetable flakes or spirulina

Feed once or twice daily, providing small portions that they consume quickly.

🧼 Care and Maintenance

• Weekly water changes (20–25%) maintain water quality

• Stable water parameters are essential for stress reduction

• Provide plenty of plants and hiding spots

• Use a secure lid to prevent jumping

• Monitor for signs of illness or distress

🌿 Why Choose the Red Phantom Tetra?

The Red Phantom Tetra brings vibrant color and peaceful schooling behavior to any freshwater aquarium. Its rich red tones and gentle demeanor make it a beautiful, low-maintenance addition perfect for planted and community tanks.

Add warmth and vibrancy to your aquarium—bring home Red Phantom Tetras today!