Red/Blue Columbian Tetra

Red/Blue Columbian Tetra

The Red/Blue Columbian Tetra (*Hyphessobrycon columbianus*) is a striking freshwater fish known for its vibrant colours and lively behaviour. This species is a popular choice in the aquarium hobby, appreciated for its unique appearance and schooling nature.

Physical Characteristics:

• Size: Red/Blue Columbian Tetras typically grow to about 5-6 cm (2-2.4 inches) in length.
• Coloration: They are characterised by a silvery body with a striking blue stripe running along the side and a red spot near the base of the tail. This vivid colouration makes them stand out in any aquarium setting.
• Fins: Their fins are relatively small and transparent, with a slight reddish hue that complements their body colours.
• Shape: The body is laterally compressed and elongated, which is typical for tetra species.

Behaviour:

• Temperament: Red/Blue Columbian Tetras are generally peaceful but can be somewhat territorial during breeding. They thrive in schools of six or more, which helps reduce aggression.
• Activity Level: They are active swimmers and enjoy exploring their environment, often seen darting around the tank in a school.
• Community Behaviour: These fish can be housed in community tanks, but care should be taken to select peaceful tankmates. Providing plenty of hiding spots will help reduce stress and territorial behaviour.

Aquarium Care:

• Tank Size: A minimum tank size of 40 litres (10 gallons) is recommended for a small group of Red/Blue Columbian Tetras, although larger tanks are preferable for better stability in water conditions.
• Water Parameters:
  • Temperature: Red/Blue Columbian Tetras thrive in warm water, with an ideal temperature range of 24°C to 28°C (75°F to 82°F).
  • pH: They prefer slightly acidic to neutral water, with a pH range of 6.0 to 7.5.
  • Hardness: Soft to moderately hard water, with a general hardness (GH) of 3-10 dGH, is ideal.
• Tank Setup:
  • Substrate and Decorations: A soft substrate is recommended. Red/Blue Columbian Tetras enjoy a well-planted tank with plenty of hiding spots, as live plants like Java fern, Amazon sword, and floating plants provide cover and mimic their natural habitat.
  • Lighting: Moderate lighting is ideal for showcasing their colours. Floating plants can help diffuse the light and create shaded areas.
  • Filtration: A gentle filtration system is recommended, as strong currents can stress these small fish. Regular water changes (about 20% weekly) are essential for maintaining a clean and healthy environment.

Diet:

Red/Blue Columbian Tetras are omnivorous and require a varied diet to thrive. Their diet should include:

• Flakes: High-quality flake food formulated for tropical fish should form the staple of their diet.
• Live or Frozen Foods: Offer live or frozen foods such as brine shrimp, bloodworms, and daphnia to provide essential protein and variety.
• Vegetable Matter: Including finely chopped vegetables, such as spinach or zucchini, can help ensure a balanced diet.

Tankmates:

Red/Blue Columbian Tetras can be housed with various peaceful tankmates, including:

• Small Tetras: Such as Neon Tetras or Rummy Nose Tetras.
• Peaceful Rasboras: Like Harlequin Rasboras.
• Bottom-Dwellers: Corydoras catfish or other peaceful bottom-dwellers.

Avoid housing them with aggressive species or fin-nippers, as this can lead to stress or injury.

Breeding:

Breeding Red/Blue Columbian Tetras can be rewarding and relatively straightforward under the right conditions:

• Breeding Setup: A separate breeding tank with shallow water (about 10-15 cm or 4-6 inches) is ideal. The water should be warm (around 24°C to 26°C or 75°F to 79°F) and slightly acidic (pH 6.0-6.5).
• Spawning Behaviour: The male will court the female, often displaying their colours. After spawning, the eggs will be scattered among the plants and should hatch within 24-36 hours.
• Fry Care: Once the fry are free-swimming, they can be fed with infusoria or newly hatched brine shrimp. The parents should be removed to prevent them from eating the fry.

Special Considerations:

• Water Quality: Regular monitoring and maintenance of water quality are crucial for the health of Red/Blue Columbian Tetras.
• Shy Nature: These fish can be shy, particularly in brightly lit tanks. Providing plenty of hiding spots can help them feel more secure.