In a home aquarium
The species reaches sexual maturity at about two years of age. Like most characins, this species spawns by intermittently releasing and fertilizing eggs among plants. It frequently eats its own eggs, so keepers remove the fish after spawning.

The lifespan in captivity is 3 to 5 years.

A  Glofish widow tetra
The black tetra was also used to make genetically modified fish sold as GloFish (fluorescent colored fish), available in a wide variety of colors.

Similar names

Glo Widow Tetras are schooling fish, who need to be kept in groups of six or more.

These widow fish are brilliantly colored and beautiful fish.

A natural fluorescence /color imparting gene was added to the fish which resulted in fish that are fluorescent/colorful at all times.