Cardinal Tetra Tropical Fish Information

Paracheirodon axelrodi
Cardinal Tetra
Behaviour Peaceful, shoaling
Typical size 3cm
Max size 4cm
Tank Area Middle
Min Tank Size 60cm
Min Number in Tank 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)

Cardinal Tetra Tropical Fish Learn all about the Cardinal Tetra's feeding habits and food types, its behaviour, its origins, its natural habitats, is it male or female, breeding advice and information, suitable tank mates, its sizing and growth range, minimum tank size, water PH and more. Use our fish community creator tool to plan your tank set up and ensure that the Cardinal Tetra is the right fish for your aquarium.

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.

Cardinal Tetra Facts

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

Cardinal Tetra Help and Advice

If you have a question about keeping Cardinal Tetra's then please use our Cardinal Tetra help forum. Join 100's of other fish enthusiasts with 1000's of years experience between them caring for and keeping fish like these.

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Check tank mates for the Cardinal Tetra fish species

You are in the thinkfish community creator for the Cardinal Tetra fish species, you can learn all about how the tool works in assessing fish tank mate compatibility at the link provided or use the tool tips provided to guide you. Create a test fish community that includes the Cardinal Tetra species and any other types of fish or crustacean you'd like to introduce - You can assess the best companions, tank size suitability, stocking levels based on filter type and volume and possible negative interactions and warnings as you build up your aquarium.

Please do check your water type for compatibility with your fish, which can be found on the Cardinal Tetra information box above and your local water company providers website. Don't waste your money and endanger your fish!
Tank Details
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