

Glowlight Tetras are a striking addition to freshwater aquariums, appreciated for their translucent bodies and signature glowing orange-red stripe that runs from nose to tail. These small, peaceful fish are ideal for community tanks and are especially captivating when kept in groups. They thrive in well-maintained, planted aquariums with stable parameters and subdued lighting.
Size: Typically grows up to 1.5 inches (4 cm) in length.
Lifespan: Average lifespan of 3 to 5 years under optimal conditions.
Temperament: Peaceful and social; best kept in schools of six or more.
Diet: Omnivorous; accepts high-quality flakes, micro pellets, and occasional live or frozen foods such as brine shrimp or daphnia.
Water Parameters:
Temperature: 74°F to 82°F (23°C to 28°C)
pH Level: 6.0 to 7.5
Hardness: 3 to 15 dGH
Visual Appeal: Their vibrant stripe and group swimming behavior create dynamic visual interest in planted aquariums.
Community Safe: Compatible with a wide variety of peaceful tank mates.
Low Maintenance: Hardy and adaptable, ideal for beginner aquarists.
Integrating live plants creates a more natural and stress-free environment for Glowlight Tetras. Recommended species include:
Java Fern – Offers broad leaves and thrives in low-light conditions.
Amazon Sword – Provides background foliage and shelter.
Cryptocoryne – Easy to maintain and creates a dense midground cover.
Explore our full plant collection here to build the perfect aquascape.
To support the health and well-being of your Glowlight tetras, consider the following:
Tropical Micro Pellets – 50g – Balanced nutrition ideal for small schooling fish.
Aquarium Water Conditioner – Ensures safe and stable water parameters.
API Test Kit – Regular testing helps maintain ideal tank conditions.
Tank Size: Minimum 10 gallons recommended for stable schooling behavior.
Substrate: Darker substrate enhances coloration and reduces stress.
Filtration: Gentle but efficient filtration; avoid strong currents.
Tank Mates: Best with other peaceful community fish like rasboras, corydoras, and smaller tetras.
Maintenance: Weekly water changes (20–25%) to preserve water quality and clarity.
Are Glowlight Tetras good for beginners?
Yes, they’re hardy, peaceful, and low-maintenance, making them great for beginners.
How many should be kept together?
A group of six or more is ideal to encourage natural schooling behavior.
Do they need live plants?
Not required, but they thrive best in planted tanks with soft lighting and cover.
Can they be bred in home aquariums?
Yes, under the right conditions with soft, acidic water and a dim setup, breeding is possible.
Do they require a heater?
Yes, a heater helps maintain stable tropical temperatures suitable for this species.
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