Red Phantom Tetra M – Hyphessobrycon sweglesi

Red Phantom Tetra M, scientifically known as Hyphessobrycon sweglesi, is a stunning freshwater fish admired for its soft translucent red body, flowing fins, and calm demeanor. Native to South American river systems, this species is a popular choice for aquarists seeking a colorful yet peaceful schooling fish.

The “M” size refers to medium-sized specimens, typically showing well-developed coloration and early fin extension. Males tend to display deeper red tones and longer dorsal fins, while females are slightly paler with a more rounded body.

One of the most interesting aspects of Red Phantom Tetras is their gentle social interaction, including subtle fin displays and group swimming behavior, which adds life and movement without aggression.

Key Features

• Known as Red Phantom Tetra (Hyphessobrycon sweglesi)

• Beautiful translucent red coloration

• Elegant flowing fins

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

• Peaceful and community friendly

• Ideal for planted aquariums

Size

• Adult size: 4.5 – 5 cm

• “M” specimens are typically 3 – 4 cm

• Compact body with graceful fins

Temperament

Red Phantom Tetra M is peaceful and social.

• Best kept in groups of 6–10 or more

• Gentle mid-water swimmer

• Males may display mildly toward each other

• Non-aggressive and community friendly

Water Conditions

Stable water conditions help maintain coloration.

• Temperature: 23 – 28°C (73 – 82°F)

• pH: 5.5 – 7.5

• GH: 3 – 12 dGH

• Ammonia/Nitrite: 0 ppm

• Nitrate: < 20 ppm

Perform 20–30% weekly water changes.

Tank Setup

Red 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 red tones

• Gentle water flow

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

Feeding Habits

Red Phantom Tetra M are omnivores.

Diet can include:

• High-quality flakes or pellets

• Frozen foods (bloodworms, daphnia, brine shrimp)

• Live foods for enhanced coloration

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

• Fin-nipping species

Care and Maintenance

To keep Red 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 Red Phantom Tetra M?

• Vibrant red translucent coloration

• Peaceful and easy to keep

• Elegant schooling behavior

• Ideal for planted aquariums

• Adds warmth and color to tanks

Red Phantom Tetra M is a beautiful and calming fish that brings rich color, graceful movement, and harmony to any aquarium. Its gentle nature and striking red tones make it a perfect addition to planted and community setups. 🐟🌿🔥