Cardinal Tetra 2-3cm

Cardinal tetra 2-3cm is a radiant schooling fish ideal for peaceful, planted aquariums. With vivid red and neon-blue stripes, they bring colour and calm to any tank. These small, social fish thrive in groups and prefer soft, slightly acidic water. Easy to care for and beginner-friendly, they’re a popular choice among aquarists of all levels.

Why Choose the Cardinal Tetra?

• Bright red and blue stripes enhance visual appeal
• Small size suits nano and mid-sized community aquariums
• Thrives in peaceful groups with other non-aggressive species
• Easy to care for, even for beginners

Species Overview Cardinal Tetra 2-3cm

• 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

Compatibility and Tank Mates for Cardinal Tetra 2-3cm

They thrive in groups of six or more. Ideal companions include rasboras, dwarf gouramis, Corydoras, and other small tetras. Avoid aggressive or much larger tank mates. Their peaceful nature ensures harmony in planted setups.

Care and Feeding Guidelines

Maintain clean, soft water with regular changes to promote health. Provide a balanced diet of flakes, micro pellets, and occasional live or frozen foods like brine shrimp or daphnia. Feed 2–3 times daily in small portions to maintain their vivid colours and vitality.

Lifespan and Aquarium Needs

In optimal conditions, cardinal tetra 2-3cm can live up to five years. A planted tank of at least 40 litres with subdued lighting and dark substrate enhances their natural beauty and supports their schooling behaviour.