The Glowlight Tetra (Hemigrammus erythrozonus) is a small, enchanting freshwater fish that adds a warm, glowing touch to any planted aquarium. Reaching about 1.5 inches (3.8 cm) in length, this tetra is known for its distinctive and subtle beauty. Its translucent body is accented by a brilliant, neon-orange stripe that runs from the nose to the base of the tail, mimicking the glow of a tiny, delicate light. This glowing stripe contrasts beautifully with the fish's silvery body and slightly pinkish fins, creating a serene and elegant appearance.
Native to the slow-moving, shaded waters of the Essequibo River basin in Guyana, the Glowlight Tetra thrives in a well-planted tank that closely mimics its natural habitat. The dense plant cover not only enhances the fish's glowing colors but also provides it with ample hiding spots and a sense of security. When kept in an aquarium with soft lighting and dark substrate, the Glowlight Tetra’s radiant stripe becomes even more pronounced, creating a striking visual effect.
Glowlight Tetras are peaceful and social fish that prefer to be kept in small groups of six or more. In a community tank, they get along well with other small, non-aggressive species, making them an excellent choice for planted aquariums. Their gentle nature and schooling behavior add a sense of tranquility and harmony to the tank.
These tetras prefer stable water conditions, with a temperature range of 74-82°F (23-28°C) and slightly acidic to neutral pH levels. They thrive in soft, clean water with a gentle current, which replicates the slow-moving waters of their natural environment.
As omnivores, Glowlight Tetras enjoy a varied diet that includes high-quality flake food, micro-pellets, and small live or frozen foods such as brine shrimp, daphnia, and bloodworms. A balanced diet helps maintain their vibrant colors and overall health.
The Glowlight Tetra’s glowing stripe, peaceful nature, and compatibility with planted tanks make it a delightful and visually appealing choice for aquarists. Whether swimming solo or in a small school, this fish adds a touch of warmth and light to any freshwater aquarium, creating a serene and enchanting underwater world.