The Glowlight Tetra (Hemigrammus erythrozonus) is a captivating jewel of the aquarium world. Native to the blackwater streams of South America, these petite, shimmering fish are a delight to behold. Named for their distinct, fiery orange-red stripe that runs the length of their body, Glowlight Tetras add a burst of color to any tank. Their peaceful nature makes them ideal community fish, coexisting harmoniously with other species. With a maximum size of around 1.5 inches (4 cm), they are perfect for smaller setups. Easy to care for and undemanding, Glowlight Tetras bring a vivid, glowing charm to aquatic landscapes, making them a cherished choice for aquarists of all levels.
 
To maintain the health and well-being of Glowlight Tetras (Hemigrammus erythrozonus) in your aquarium, it's important to provide suitable water parameters that mimic their natural habitat in South America.
 
Here are the recommended water parameters for Glowlight Tetras:
Temperature: Keep the water temperature in the range of 72-82°F (22-28°C). They prefer slightly warmer water, so aim for the upper end of this range for optimal conditions.
pH Level: Maintain a slightly acidic to neutral pH level, ideally between 6.0 and 7.5.
Hardness (GH and KH): Glowlight Tetras tolerate a moderate hardness level. Aim for a general hardness (GH) between 5-15 dGH (degrees of General Hardness) and a carbonate hardness (KH) between 3-8 dKH (degrees of Carbonate Hardness).
Ammonia and Nitrite: Keep ammonia and nitrite levels at zero through proper filtration and regular water changes.
Nitrate: Keep nitrate levels below 20 ppm (parts per million) through routine water changes.
Aquascape: Provide ample hiding spots and dense vegetation, as Glowlight Tetras appreciate cover and thrive in a well-planted aquarium.
 
Regular water testing and monitoring are essential to ensure that these parameters remain stable. Consistency in water quality is crucial for the health and vibrancy of your Glowlight Tetras.