Red Belly Tetra: Species Profile

The term “Red Belly Tetra” can refer to several freshwater fish species characterized by their distinctive red abdominal coloration. Notable among these are the Serpae Tetra (Hyphessobrycon eques) and the Bloodfin Tetra (Aphyocharax anisitsi). Both species are popular in the aquarium hobby due to their vibrant appearance and manageable care requirements.

Serpae Tetra (Hyphessobrycon eques)

• Common Names: Serpae Tetra, Red Minor Tetra
• Adult Size: Approximately 1.5 inches (4 cm)
• Lifespan: 5 to 7 years
• Origin: Amazon River basin, South America
• Behavior: Active and semi-aggressive; best kept in schools of six or more to mitigate fin-nipping tendencies
• Tank Size: Minimum 20 gallons
• Water Parameters:
  • Temperature: 72–79°F (22–26°C)
  • pH: 5.5 to 7.5
  • Hardness: 5 to 15 dGH
• Diet: Omnivorous; accepts high-quality flake foods, as well as live or frozen options like brine shrimp and bloodworms
• Breeding: Egg scatterers; spawning can be encouraged in a separate breeding tank with slightly acidic water

Bloodfin Tetra (Aphyocharax anisitsi)

• Common Names: Bloodfin Tetra
• Adult Size: Up to 2 inches (5 cm)
• Lifespan: 5 to 8 years
• Origin: Paraná River basin, South America
• Behavior: Peaceful and hardy; thrives in schools of six or more
• Tank Size: Minimum 20 gallons
• Water Parameters:
  • Temperature: 64–82°F (18–28°C)
  • pH: 6.0 to 8.0
  • Hardness: 2 to 30 dGH
• Diet: Omnivorous; enjoys flake foods, as well as live or frozen options like daphnia and mosquito larvae
• Breeding: Egg scatterers; breeding is relatively straightforward in a well-maintained aquarium

General Care Tips

• Tank Setup: Provide a well-planted aquarium with open swimming areas. Incorporate hiding spots using driftwood and rocks to mimic their natural habitat.
• Water Quality: Maintain stable water conditions with regular water changes to ensure optimal health.
• Tank Mates: Both species are suitable for community tanks with other peaceful fish of similar size. Avoid housing Serpae Tetras with long-finned species to prevent fin-nipping.
• Feeding: Offer a varied diet to enhance coloration and vitality.

By providing appropriate care and a suitable environment, Red Belly Tetras can be a vibrant and engaging addition to any freshwater aquarium.