The Cardinal Tetra, scientifically known as Paracheirodon axelrodi, is a small yet stunning species of tetra originating from the rivers of South America. Here's everything you need to know about caring for Cardinal Tetra groups:

Appearance:

• Striking Coloration: The Cardinal Tetra is named for its vibrant red and iridescent blue coloration. Its shimmering colors create a captivating visual display, making it a popular choice among aquarists.

Water Conditions:

• Temperature: Maintain the water temperature between 22°C and 26°C (72°F-79°F) to provide optimal conditions for Cardinal Tetra groups.
• pH Level: Aim for a slightly acidic to neutral pH range of 5.5 to 7.5 to replicate their natural habitat.
• Water Hardness: Cardinal Tetras prefer soft to moderately hard water, with a general range of 1 to 10 dH.
• Filtration: Adequate filtration and regular water changes are crucial to maintain excellent water quality and the overall health of your fish.

Tank Setup:

• Tank Size: A tank with a minimum capacity of 10 gallons is suitable for a group of five Cardinal Tetras. Provide ample swimming space and dense vegetation for them to feel secure.
• Plants and Decorations: Live plants, especially those with fine-leaved structures, provide both visual appeal and hiding spots for the Cardinal Tetras. Use driftwood and rocks to create natural hiding places.
• Water Parameters: Ensure stable water parameters, avoid sudden fluctuations, and maintain good water quality to support the well-being of Cardinal Tetra groups.

Tank Mates:

• Peaceful Community Fish: Cardinal Tetras are peaceful and can coexist with other small, non-aggressive fish species that share similar water parameter requirements.
• Schooling Behavior: These tetras are schooling fish and thrive in the company of their own species. Keeping them in groups of five or more will encourage natural schooling behavior and reduce stress.

Feeding Habit:

• Omnivorous Diet: Cardinal Tetras are omnivorous and accept a variety of foods. Offer them high-quality dry flakes or pellets as their staple diet. Supplement their diet with occasional feedings of small live or frozen foods such as brine shrimp, daphnia, or bloodworms to provide additional variety and nutrition.

Care:

• Regular Feeding: Provide regular feedings of appropriate-sized portions to meet the dietary needs of Cardinal Tetra groups.
• Water Parameters: Regularly monitor and maintain stable water parameters suitable for these tetras to ensure their well-being.
• Partial Water Changes: Perform regular partial water changes of around 25% every 1-2 weeks to maintain water quality and stability.
• Tank Maintenance: Clean the tank regularly, removing any uneaten food, debris, or excess waste to maintain water quality.
• Monitoring Health: Observe the Cardinal Tetra groups for any signs of disease, stress, or abnormal behavior.

The Cardinal Tetra is a beautiful and peaceful fish species that adds a vibrant touch to any freshwater aquarium. Enjoy their stunning colors and mesmerizing schooling behavior as they gracefully swim together. Order a group of five Cardinal Tetras today and bring their beauty into your home aquarium!