Care Guide
About Tetras
Tetra fish are small, vibrant freshwater fish native to the Amazon River basin in South America. They are popular among aquarium enthusiasts for their stunning colors and peaceful nature. Visit our tropical fish page to see what we have in stock.
Characteristics of the Cardinal Tetra
Cardinal tetras (Paracheirodon axelrodi) are known for their striking appearance. They have a deep red color that extends from their head to the middle of their body, which contrasts beautifully with their iridescent blue-green back and silver underside. Their fins are transparent, with a bold splash of red at the base of their tail. Cardinal tetra fish are a beautiful and peaceful addition to any freshwater aquarium. With their vibrant colors and social nature, they are sure to captivate any observer.
Other Tetras we carry: Black Neon Tetra
Care and Feeding
Cardinal tetras are peaceful and social fish, making them an excellent choice for community aquariums. They thrive in a well-maintained tank with a pH level between 5.5 and 7.0, and a temperature range of 73-81°F (23-27°C). It is important to provide them with plenty of hiding spots, such as plants or caves, as they are naturally timid and prefer shaded areas.
Cardinal tetras are omnivorous and will eat a variety of foods. Their diet should consist of high-quality flake or pellet food, supplemented with live or frozen foods such as brine shrimp, bloodworms, and daphnia. Providing a varied diet will help ensure their overall health and vibrant colors.
Compatibility
Cardinal tetras are peaceful schooling fish and should be kept in groups of at least six to eight individuals. They coexist well with other small, non-aggressive fish such as Neon Tetras, Guppies, and Rasboras. Avoid keeping them with larger, aggressive species that may intimidate or prey on them.