The minimum tank size requirement for the Ember tetras is at least 10 gallons with few live aquarium plants.

Ideally their tank should contain live plants, a darker substrate, and open water for swimming.

These fish swim at the middle level of the aquarium, and they don't feed from the bottom of the tank.

Therefore, it is recommended that they are kept with other bottom dwelling fish (such as pygmy corydoras) so that leftover food is then eaten up off the substrate and not left to waste.

Small live foods like worms and brine shrimp are also recommended as they bring out the fish's colors.