Adult Size: The Cardinal Tetra typically grows to about 1.5 inches (3.8 cm) in length.
Temperature Range: Cardinal Tetras prefer a water temperature between 73°F and 81°F (23°C to 27°C).
pH Range: They thrive in slightly acidic to neutral water, with a pH range of 5.5 to 7.0.
Compatibility: Cardinal Tetras are peaceful and do well in community tanks with other peaceful species. They are schooling fish and should be kept in groups of at least 6 to 8.
Minimum Tank Size: A minimum tank size of 45 liters is recommended for a small group of Cardinal Tetras.
Originates from: Cardinal Tetras are native to the clear and blackwater streams of the Amazon Basin, primarily in Brazil, Colombia, and Venezuela.
Ideal Substrate: A fine, dark substrate is ideal for Cardinal Tetras, as it mimics their natural habitat and helps to bring out their vibrant colors.
Ideal Tank Mates Suggestions:
Neon Tetras
Ember Tetras
Guppies
Corydoras Catfish
Dwarf Gouramis
Harlequin Rasboras
Otocinclus Catfish
Fish to Avoid:
Large, aggressive fish such as Cichlids
Fin-nipping species like Tiger Barbs
Any fish that might see the Cardinal Tetra as food, such as Oscars or Arowanas