Cardinal Tetra
Behaviour Peaceful, shoaling
Typical size 3cm
Max size 4cm
Tank Area Middle
Min Tank Size 60cm
Min Number 6
Temp Min: 24℃ Max: 28℃
Feeding Flake, frozen, live foods
pH Range 5-7.5
Hardness vs,s,m
Cardinal Tetra Paracheirodon axelrodi
  • Cardinal Tetra Paracheirodon axelrodi - thumbnail

Cardinal Tetra

Paracheirodon axelrodi

The Cardinal Tetra is arguably more colourful than the similar Neon Tetra (Paracheirodon innesi) but must be kept in soft-medium water if it is to show its full colour and lifespan. In hard water the fish is likely to die prematurely from a build-up of salts in the kidneys. Apart from this requirement, once settled the Cardinal Tetra is a relatively hardy and well-suited aquarium fish. In the wild, these fish shoal in groups of hundreds, if kept in the aquarium in small numbers they will become timid, reclusive and more likely to become ill. The Cardinal Tetra is at its best when kept in groups of a dozen or more in aquariums with open areas and spots of dense vegetation. Avoid bright lighting or provide areas of shade.

Family Characidae (Characins) | Synonyms Cheirodon axelrodi, Hyphessobrycon cardinalis | Origin South America; Upper Orinoco & Rio Negro River basins | Breeding Egg scatterer. Eggs hatch after 24 hours, unlikely to breed in home aquaria | Natural Water Conditions pH 4-6, very soft to soft | Natural Habitat Large shoals in open, clear, slow moving or standing water | Sexing Males are more slender

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