Description
Cardinal Tetra (Paracheirodon axelrodi) – A Living Gem of Brilliant Color
The Cardinal Tetra (Paracheirodon axelrodi) is a true gem of the aquarium world, known for its striking combination of deep blue and brilliant red coloration. With its vibrant, almost fluorescent red stripe running from head to tail, complemented by the shimmering blue of its body, the Cardinal Tetra creates an awe-inspiring visual display in any freshwater aquarium. Often compared to its close relative, the Neon Tetra, the Cardinal Tetra’s coloration is more intense, making it one of the most beloved species among aquarists.
Native to the crystal-clear waters of the Amazon River basin in South America, the Cardinal Tetra is a peaceful, active fish that thrives in schools. Its serene swimming and social behavior make it an excellent addition to community tanks with other peaceful species. A true favorite in planted aquariums, the Cardinal Tetra’s vivid colors stand out beautifully against lush greenery.
Key Features & Care Guidelines:
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Stunning Coloration: A vibrant red stripe that extends from the nose to the tail, complemented by a shimmering blue body—perfect for creating a colorful, lively aquarium.
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Behavior: Peaceful and social schooling fish; best kept in groups of 6 or more to enhance natural behavior and reduce stress.
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Tank Size: Minimum 15 gallons recommended for a small school, though a larger tank is ideal for a vibrant display.
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Water Parameters: Prefers soft, slightly acidic to neutral water with a pH between 6.0 and 7.0, and temperatures from 72°F to 80°F (22°C to 27°C).
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Diet: Omnivorous; accepts flakes, micro pellets, and live or frozen foods such as brine shrimp, daphnia, and bloodworms.
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Tank Setup: Thrives in planted tanks with plenty of hiding spots, open swimming areas, and gentle water flow. A soft, dim light enhances their vibrant colors.
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Experience Level: Hardy and easy to care for, making them an excellent choice for both beginner and experienced aquarists.
The Cardinal Tetra (Paracheirodon axelrodi) is a must-have for any aquarist looking to add a burst of color and peaceful energy to their freshwater tank. Its brilliant red and blue hues, combined with its serene demeanor, make it one of the most beautiful and popular tetras in the aquarium hobby.
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