About the Cardinal Tetra
Name: Cardinal Tetra
Max Size: Cardinal Tetras typically grow to a maximum size of around 1.5 inches (3.8 cm) in length.
Recommend pH: 4.0-6.5
Recommended Temperature (Β°F): 75-82Β°F (24-28Β°C)
Diet: Cardinal Tetras are omnivorous and primarily feed on small insects, worms, and other small aquatic invertebrates in their natural habitat. In an aquarium, they readily accept high-quality flake or pellet foods designed for tropical fish. Offering them a varied diet that includes live or frozen foods such as brine shrimp, daphnia, and bloodworms will help maintain their vibrant coloration and provide essential nutrients.
Temperament: Cardinal Tetras are peaceful and have a calm temperament, making them ideal for community aquariums. They coexist well with other small, non-aggressive fish species. Keeping them in groups of at least six individuals is recommended to reduce stress and promote their natural schooling behavior.
Schooling or Non-Schooling Fish: Cardinal Tetras are schooling fish and thrive when kept in larger groups. They should ideally be kept in a school of at least six to ten individuals, although larger groups are even better. Keeping them in proper schools enhances their natural behavior, reduces stress, and makes them feel secure in the aquarium.
Possible types of tank mates: Cardinal Tetras are compatible with other peaceful community fish that prefer similar water conditions. Good tank mates include other small tetras, rasboras, peaceful dwarf cichlids, and other non-aggressive species. Avoid keeping them with larger or aggressive fish that may view them as prey or cause stress.
Behavior: Cardinal Tetras are known for their stunning colors and active behavior. They prefer to swim in the middle and upper levels of the aquarium, creating a vibrant display with their bright red and blue coloration. In a school, they move together in a synchronized manner, showcasing their schooling behavior and creating a visually appealing sight.
Fun Fact: Cardinal Tetras, scientifically known as Paracheirodon axelrodi, are often considered one of the most beautiful and popular aquarium fish species. They are named after Dr. Herbert R. Axelrod, a renowned ichthyologist who played a significant role in popularizing the aquarium hobby. With their vibrant red and blue coloration, Cardinal Tetras add a touch of elegance to any aquarium and are a favorite choice among aquarists worldwide.