Glowlight Tetra
 
A Radiant and Peaceful Aquarium Fish Glowlight Tetras (Hemigrammus erythrozonus) are small, vibrant fish known for their striking orange-red stripe that glows under aquarium lighting. These peaceful schooling fish are perfect for community aquariums and bring a touch of elegance to planted tanks. Glowlight Tetras are hardy, making them a great choice for both beginners and experienced aquarists.
Caring for Glowlight Tetras in Your Aquarium Glowlight Tetras thrive in tanks of at least 40 liters, with plenty of live plants, driftwood, and soft substrates to mimic their natural habitat. They prefer water temperatures between 22°C and 28°C, with a pH range of 5.5–7.5. Gentle filtration and regular water changes are essential for maintaining their health and the clarity of their glowing stripe.
 
Ideal Tank Mates for Glowlight Tetras These peaceful fish are compatible with other non-aggressive species, such as Neon Tetras, Corydoras, and Rasboras. Keeping them in groups of six or more enhances their schooling behaviour and reduces stress. Avoid housing them with larger or aggressive species, as their small size and gentle nature make them vulnerable.
Feeding Glowlight Tetras for Vibrant Colours Glowlight Tetras are omnivores that thrive on a varied diet. High-quality flakes or micro-pellets make an excellent staple, while live or frozen foods like brine shrimp, daphnia, and bloodworms provide essential nutrients. A balanced diet enhances their vibrant colours and keeps them active and healthy.
Breeding Glowlight Tetras Breeding Glowlight Tetras is straightforward with the right conditions. Use a breeding tank with soft, slightly acidic water and dim lighting to encourage spawning. Fine-leaved plants or spawning mops provide a safe place for egg-laying. Once eggs are laid, remove the adults to prevent them from eating the eggs. Fry hatch within 24–36 hours and can be fed infusoria or finely crushed fry food until they grow larger.
 
FAQs What tank size is ideal for Glowlight Tetras? A minimum of 40 liters is recommended, with plants and plenty of swimming space.
Can they live with other fish? Yes, they pair well with peaceful species like Neon Tetras and Corydoras.
What do they eat? They thrive on flakes, live or frozen foods, and occasional vegetable-based supplements.
Are they beginner-friendly? Absolutely! Their hardy nature and peaceful temperament make them ideal for new aquarists.
What water conditions do they need? They prefer soft, slightly acidic to neutral water with temperatures between 22°C and 28°C.
 
Species Overview
Species: Hemigrammus erythrozonus
Common Name: Glowlight Tetra
Origin: Guyana
Diet: Omnivore
pH Range: 5.5–7.5
Temperature: 22°C–28°C
Max Size: Up to 4 cm
Tank Size: Minimum 40 liters