Neon tetras are native to blackwater (tannin stained) and clear water streams of the Amazon Basin. They thrive in warm, acidic, slow-moving waters that are densely vegetated under dense forest canopy. In nature, they are a peaceful schooling fish that swim in the middle water layers, relying on dense plants to hide from predators. They coexist harmoniously with other small, gentle species, shrimp, and snails. Their iconic neon blue and red stripes help them find and stay with their school in dim or murky waters. Their common name refers to their vibrant colors, akin to neon lighting. Because of their beautiful appearance, they are one of the most common aquarium fish.