It is genetically more distant from the Neon tetra (P. innesi) than the Cardinal (P. axelrodi) and from the Green neon (P. simulans, shown above). It’s unlikely to ever appear in the hobby as a ...

The cardinal tetra is a freshwater fish of the family Characidae of order Characiformes. It is native to the upper Orinoco and Negro Rivers in South America. Growing to about 3 cm (1.2 in) total ...

These fish are at the starting point for most community aquarist ... Few first-time fishkeepers haven’t been drawn to the striking blue and red coloration of Neon and Cardinal tetras (Paracheirodon ...