The Neon Tetra, scientifically known as Paracheirodon innesi, is one of the most iconic and beloved freshwater fish in the aquarium hobby. Originating from the calm, shaded streams and blackwater tributaries of the Amazon Basin, this small, schooling fish is celebrated for its iridescent beauty, peaceful nature, and timeless charm. Its appearance is unmistakable—an electric blue horizontal stripe runs from the head to the tail, shimmering vividly under aquarium lighting, while a bright red band glows across the lower half of the body. The rest of the fish is a translucent silver, creating a striking contrast that gives the Neon Tetra its distinctive, almost luminescent quality. When kept in groups, their synchronized movements create a mesmerizing display of color and motion. In aquariums, Neon Tetras thrive in well-planted setups that offer both open swimming areas and shaded retreats. A soft substrate, driftwood, and broad-leaved plants help mimic their natural Amazonian environment, where they inhabit tannin-rich waters under filtered light. They are sensitive to sudden changes in water conditions, so stability and good filtration are essential for their well-being. As highly social fish, Neon Tetras should always be kept in groups. A healthy school enhances their confidence and brings out their brightest colors and most natural behaviors. Their calm demeanor makes them excellent companions for other peaceful fish, such as small rasboras, dwarf cichlids, and Corydoras catfish, forming harmonious community tanks. Feeding is simple, as they accept a wide range of foods. A balanced diet of high-quality micro pellets or flakes, supplemented with live or frozen foods like daphnia and brine shrimp, helps maintain their health and coloration. Offering a mix of food types encourages natural feeding activity and supports long-term vitality. Breeding Neon Tetras in captivity can be challenging, as they require soft, slightly acidic water and subdued lighting to encourage spawning. They are egg scatterers, and separating the adults after spawning helps protect the eggs from predation. The Neon Tetra remains a timeless classic in the aquarium world, admired for its beauty, grace, and peaceful temperament. Whether in a biotope setup or a community tank, its vivid colors and schooling behavior bring a sense of tranquility and natural wonder to any aquatic environment.