Despite being the more prevalent species in the aquarium trade, malabar danios have repeatedly been mistaken for numerous other Devario species, such as the giant danio (Devario Aequipinnatus).

Through selective breeding, the gold convict cichlid was bred due to a genetically mutated color caused by an autosomal recessively inherited gene. This phenotype lacks the dark black stripes that their wild counterparts display.

Through selective breeding, the white convict cichlid was bred due to a genetically mutated color caused by an autosomal recessively inherited gene. This phenotype lacks the dark black stripes that their wild counterparts display.

Through selective breeding, the pink convict cichlid was bred due to a genetically mutated color caused by an autosomal recessively inherited gene. This phenotype lacks the dark black stripes that their wild counterparts display.

The convict cichlid's 8 to 9 vertical black stripes have a zebra-like pattern and are reminiscent of the earlier striped prison uniforms. All of this contributes to their well-known name, as does their scientific name Nigrofasciatus, which literally means "black-striped".

One of the most popular African cichlids in the aquarium hobby is the lemon jake peacock cichlid, which is likely due to their display of various colorations and patterns that are uncommon in most other species and has a calmer disposition than most other cichlids.

One of the most popular African cichlids in the aquarium hobby is the eureka red peacock, which is likely due to their display of various colorations and patterns that are uncommon in most other species and has a calmer disposition than most other cichlids.

Siamese fighting fish are among the first known species of fish in the aquarium industry, having been domesticated since the earliest accounts in Thailand in the 14th century. They are a popular fish among aquarium enthusiasts due to variations in color and morphology that emerged as a result of domestication, producing a vast array of distinct colors, patterns, and fins.