Cardenal Tetra Jumbo Paracheirodon Axelrodi

The Cardinal Tetra Jumbo (Paracheirodon axelrodi), also known as the "Tetra Cardenal Jumbo," is a vibrant and peaceful freshwater fish native to the upper Orinoco and Negro Rivers in South America. Renowned for its striking iridescent blue line and vivid red coloration, this larger variant of the standard Cardinal Tetra adds dynamic beauty to community aquariums.

🐟 Species Overview

• Scientific Name: Paracheirodon axelrodi

• Common Names: Cardinal Tetra, Tetra Cardenal Jumbo

• Origin: Upper Orinoco and Negro Rivers, South America

• Size: Up to 2 inches (5 cm)

• Lifespan: 3–5 years in captivity

• Temperament: Peaceful, schooling fish

• Swimming Level: Midwater

🏡 Aquarium Setup

• Tank Size: Minimum 20 gallons (75 liters) for a small school; larger tanks recommended for bigger groups

• Group Size: Keep in schools of at least 6–10 individuals to promote natural behavior and reduce stress

• Substrate: Dark sand or fine gravel to mimic natural riverbeds

• Decor: Incorporate driftwood, leaf litter, and dense vegetation to replicate their native blackwater habitat

• Lighting: Dim lighting; floating plants can help diffuse light

• Water Flow: Gentle to moderate; avoid strong currents

💧 Water Parameters

• Temperature: 73–81°F (23–27°C

• pH: 4.5–7.5; slightly acidic water preferred

• Hardness: Soft water with low mineral content

• Water Changes: Regular weekly changes (20–30%) to maintain water quality

🍽️ Diet & Feeding

Cardinal Tetras are omnivores and thrive on a varied diet:

• Staple Foods: High-quality flake foods or micro pellets

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

• Feeding Frequency: Feed small amounts 2–3 times daily; avoid overfeeding

🤝 Tankmates & Compatibility

Cardinal Tetras are ideal for community aquariums with other peaceful species:

• Compatible Tankmates: Other small tetras, rasboras, Corydoras catfish, and dwarf cichlids

• Avoid: Large or aggressive fish that may intimidate or prey on them

🐣 Breeding Tips

Breeding Cardinal Tetras in captivity is challenging but achievable with proper care:

• Spawning Setup: Use a separate breeding tank with soft, acidic water and fine-leaved plants or spawning mops

• Lighting: Keep the breeding tank in complete darkness, as eggs are sensitive to light

• Behavior: Males pursue females during spawning; eggs are scattered and adhere to plants

• Fry Care: Feed infusoria or microworms initially; maintain pristine water conditions

📝 Care Summary

By maintaining optimal water conditions, providing a balanced diet, and ensuring a well-structured environment with ample hiding spots, Cardinal Tetra Jumbos can thrive and display their full coloration and natural behaviors in home aquariums.