A small school of tetras for a quiet aquarium

These tetras lived in our aquarium for about two years, and during that time, we noticed that they behaved especially beautifully in a group. When the lights came on in the morning, they first stayed close to the plants, then began swimming throughout the aquarium. They are a fairly calm fish, don't conflict with other species, and thrive in moderately lit water. We fed them regular dry food for small fish and occasionally added live food. The aquarium was regularly maintained, so the conditions were always stable. We recently had to dismantle the aquarium due to apartment renovations, and we decided to give the fish to someone who already had a set-up aquarium.