This species only became available in the aquarium hobby during the early 21st century but has already achieved a measure of popularity since it’s attractive, easy to maintain and usually quite cheaply-priced.

You may see it on sale under various trade names including ‘Vietnamese minnow’, ‘cardinal minnow’, ‘royal white cloud’, ‘dwarf cardinal’ and others.

We’ve obtained images of what is said to be a naturally-occurring form with extremely elong…