Cardinal Tetra

Cardinal Tetra (Paracheirodon axelrodi)

One of the most iconic freshwater fish in the hobby, the Cardinal Tetra features a vivid iridescent blue stripe running the full length of its body, with a bold red lower half. Peaceful and stunning in a large school, it's a must-have for planted community tanks.

Care at a Glance:

• Minimum Tank Size: 55L with plants and gentle flow
• Temperature: 24–28°C
• pH Range: 6.0–7.0
• Water Hardness: Soft to moderate
• Temperament: Peaceful, schooling
• Diet: Micro-pellets, flakes, frozen bloodworms and brine shrimp
• Max Size: 4–5cm
• Lifespan: 3–5 years
• Care Level: Easy to moderate (sensitive to water quality)

Tank Mates: Peaceful community fish such as other tetras, rasboras, corydoras, and dwarf cichlids; keep in groups of 8+.

Origin: South America — blackwater streams (Brazil, Colombia, Venezuela)