Black Phantom Tetra M – Hyphessobrycon megalopterus

Black Phantom Tetra M, scientifically known as Hyphessobrycon megalopterus, is a graceful and popular freshwater fish admired for its smoky gray to black coloration, flowing fins, and calm temperament. Native to South American river basins, this species is a favorite for aquarists seeking a subtle yet elegant schooling fish.

The “M” size refers to medium-sized specimens, typically showing developed coloration and early fin extension. Males are especially attractive, displaying darker tones and elongated dorsal fins, while females have a slightly lighter body with a reddish hue on their fins.

One of the most interesting behaviors of Black Phantom Tetras is their “mock sparring” display, where males face each other and flare their fins without causing harm. This natural interaction adds character and visual interest to community aquariums.

Key Features

• Known as Black Phantom Tetra (Hyphessobrycon megalopterus)

• Elegant smoky black/gray coloration

• Males have longer, more dramatic fins

• “M” size – medium, well-developed fish

• Peaceful with interesting social behavior

• Ideal for planted aquariums and community tanks

Size

• Adult size: 4.5 – 5 cm

• “M” specimens are typically 3 – 4 cm

• Compact body with flowing fins

Temperament

Black Phantom Tetra M is peaceful and social.

• Best kept in groups of 6–10 or more

• Males may display (non-aggressive sparring)

• Calm mid-water swimmer

• Suitable for peaceful community tanks

Water Conditions

Stable conditions are important for health.

• Temperature: 23 – 28°C (73 – 82°F)

• pH: 6.0 – 7.5

• GH: 3 – 12 dGH

• Ammonia/Nitrite: 0 ppm

• Nitrate: < 20 ppm

Perform 20–30% weekly water changes.

Tank Setup

Black Phantom Tetras thrive in planted aquariums.

Recommended setup includes:

• Dense plants along sides and background

• Open swimming space

• Driftwood and shaded areas

• Dark substrate to enhance coloration

• Gentle water flow

Minimum tank size: 60 liters (~15 gallons).

Feeding Habits

Black Phantom Tetra M are omnivores.

Diet can include:

• High-quality flakes or micro pellets

• Frozen foods (bloodworms, daphnia, brine shrimp)

• Live foods for conditioning

Feed 1–2 times daily.

Tank Mates

Ideal for peaceful community aquariums.

Suitable tank mates:

• Other tetras

• Rasboras

• Corydoras

• Dwarf cichlids

• Gouramis

Tank mates to avoid:

• Large aggressive fish

• Highly active fin-nippers

Care and Maintenance

To keep Black Phantom Tetra M healthy:

• Keep in groups for natural behavior

• Maintain stable water parameters

• Provide planted environment

• Perform regular water changes

• Feed a balanced diet

With proper care, they can live 4–6 years.

Why Choose Black Phantom Tetra M?

• Elegant smoky black coloration

• Peaceful and easy to keep

• Unique display behavior among males

• Ideal for planted aquariums

• Adds calm and sophistication to tanks

Black Phantom Tetra M is a refined and peaceful fish that adds subtle beauty, natural behavior, and elegance to any aquarium. Its gentle nature and graceful movement make it a perfect addition to community and planted setups. 🐟🌿