They are best seen in the aquarium if kept in subdued lighting with a dark substrate. The water should be soft to slightly hard. d°GH of 6° to 15°. Use a slightly acidic pH of 6.8 in the range 6.0 - 7.5. They prefer a temperature of 25 °C in the range of 22° - 28° °C (72° - 82 °F). The hardiness of this fish allows it to easily adapt to harder water, although soft water is essential for captive breeding.
Like all small tetras, H. erythrozonus are happiest, most active, and most aesthetically pleasing when in a shoal. A minimum aquarium length of 60 cm will make them more comfortable when swimming. They prefer a well planted tank for hiding, but with some open water for free swimming