Cardinal Tetra

By Gary Bolton

Family: Characidae

Species: Paracheirodon axelrodi

Size: 4.5cm (1 three quarter inch)

Diet: Omnivorous

Tank levels: All

Habitat: Slow-flowing waters in Venezuela, Brazil, and Colombia

Remarks: For best colours (and breeding conditions), provide soft acidic water. This tetra is distinguished from other similar fishes like, Paracheirodon innesi and P. simulans, by the extent of the red band.

Comments: A striking, electric blue stripe adorns this fish, running from the snout, through the top half of the eye, to the adipose fin. The lower body is bright red, with a small, silver area along the front ventral surface. Females have deeper bodies. Unlike the Neon Tetra, this fish requires much softer water to keep and breed and should not be confused with the Neon Tetra for ease of keeping.


This fish comes from the “Tropical Fish” family species of fish. I hope you enjoyed this fish profile that I put together to help people to choose the right fish for the right aquarium tank setup you may own, or be thinking of buying in the future. If you require more information about keeping fish in general and what are the right fish to choose for your tank setups, you can always visit my site called “GB Aquarium” and see what’s posted new there and also join in the discussion taking place.

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