The Cardinal tetra is a very popular fish aquarium fish native to South America, growing to about 3-4 cm (1.5 in) total length.  It is a peaceful schooling fish and prefers to be in a group than by themselves, we recommend a minimum group of 3 for small nano tanks of 2 to 5 gallon aquarium.  In the aquarium this tetra shows awesome reflective and vibrant red and metallic blue colors. bioAquatiX Cardinals are usually more robust than what is found in the aquarium trade since they are born and raised in tanks in Florida and grown in hard alkaline water
 
Scientific Name     Paracheirodon axelrodi
Family    Characin
Natural origin    Rio Negro Amazon
Origin of this specimen    Tank born and raised by bioAquatiX
Generation filial    F1
pH range    5.0 to 7.0
Temperature range (°F)    75 to 95: best 80 to 82
Mature length (in a tank)    1.5 inch
Minimum tank size    2 gallons
 
Aquarium bred and raised
Purchase Size: 0.5"-0.75"