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Cardinal Tetra (Paracheirodon axelrodi)
The Cardinal Tetra is one of the most popular and stunning freshwater fish, known for its vibrant red and iridescent blue stripes. Native to the slow-moving, blackwater rivers of South America, particularly in the Amazon basin, this peaceful schooling fish is a must-have for planted and community aquariums.
Appearance:
Cardinal Tetras are celebrated for their striking appearance. They feature a bright neon-blue stripe running along the length of their body, complemented by a vivid red stripe extending from the middle to the tail. Their petite size of about 3-5 cm makes them perfect for smaller tanks, while their shimmering colours make them a focal point in any aquarium.
Aquarium Care:
These tetras thrive in tanks of at least 40 litres, with soft, acidic water and a temperature range of 23°C to 27°C. A pH range of 5.0 to 7.0 replicates their natural habitat and keeps them healthy. Provide a densely planted tank with subdued lighting and dark substrate to enhance their colours. Regular water changes and good filtration are essential for maintaining pristine water conditions.
Tank Mates:
Cardinal Tetras are peaceful schooling fish that should be kept in groups of at least 6-8 individuals. They are excellent companions for other non-aggressive fish such as rasboras, Corydoras catfish, dwarf gouramis, and smaller tetras. Avoid housing them with larger or predatory species.
Feeding & Nutrition:
As omnivores, Cardinal Tetras thrive on a varied diet. Feed them high-quality micro pellets or flakes as a staple, supplemented with live or frozen foods such as brine shrimp, daphnia, and bloodworms. Offering small portions 2-3 times daily ensures they receive the nutrients they need for vibrant colours and good health.
Lifespan:
With proper care, Cardinal Tetras can live up to 5 years, bringing a dazzling display of colour and activity to your aquarium.
FAQs:
What size tank is ideal for Cardinal Tetras?
A tank of at least 40 litres is recommended, with plenty of plants and open swimming areas.
Can Cardinal Tetras live with other fish?
Yes, they are peaceful and thrive in community tanks with other small, non-aggressive species.
How often should I feed my Cardinal Tetras?
Feed them 2-3 times daily with a varied diet of flakes, pellets, and live or frozen foods.
Do Cardinal Tetras need to be in groups?
Yes, they are schooling fish and should be kept in groups of at least 6-8 for their well-being and natural behaviour.
How long do Cardinal Tetras live?
With proper care, they can live up to 5 years in a well-maintained aquarium.
Species Overview:
- Species: Paracheirodon axelrodi
- Common Name: Cardinal Tetra
- Origin: South America (Amazon Basin)
- Diet: Omnivore
- PH Range: 5.0 – 7.0
- Temperature: 23°C – 27°C
- Max Size: Approximately 3-5 cm
- Sex: Un-sexed
Weight | 0.1 kg |
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Dimensions | 5 × 5 × 5 cm |
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