Fish Wiki

All fish / Characidae

Cardinal tetra

Paracheirodon axelrodi

Also known as cardinal, 宝莲灯

Cardinal tetra
Photo: CHUCAO, CC BY-SA 3.0, via Wikimedia Commons
Tankmates, for sale near youIdentify a fish from a photo

Like the neon, but the red covers the whole lower body. Prefers warmer, softer water.

Care at a glance

Care level
Moderate
Temperament
Peaceful
Adult size
4 cm
Temperature
24 to 29 °C
pH
4.5 to 7
Smallest tank
60 litres
Keep as
Shoal of 8 or more
Diet
Omnivore: micro pellets, frozen foods
Swims
Middle of the tank
Lifespan
4 to 5 years
Water
Freshwater
Wild range
Rio Negro and Orinoco basins

Breeding

Rarely bred; most are wild-caught. Needs very soft, acidic water.

Good to know

A good tankmate for discus, as it takes the same warm water.