A familiar aquarium resident for decades, the Black neon is an adaptable species found in both forest streams and extensive seasonal floodwaters in the wild. Whether tinted blackwater or clear, these habitats tend to feature running water and the cover of waterlogged debris or aquatic plants. The bold white and black lines serve to keep fish in contact with one another in turbid water and although they often occur alongside other tetras they will usually shoal discreetly in aquaria, making them a great contrast to other tetras such as Cardinals.