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 appealSmall size suits nano and mid-sized community aquariumsThrives in peaceful groups with other non-aggressive speciesEasy to care for, even for beginnersSpecies Overview Cardinal Tetra 2-3cmSpecies: Paracheirodon axelrodiCommon Name: Cardinal TetraOrigin: South America (Amazon Basin)Diet: OmnivorePH Range: 5.0 – 7.0Temperature: 23°C – 27°CMax Size: Approximately 3-5 cmSex: Un-sexedCompatibility and Tank Mates for Cardinal Tetra 2-3cmThey 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 GuidelinesMaintain 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 NeedsIn 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.
