Description
Glow Purple Widow Tetra (Hemigrammus sp. GloFish)
π Basic Info
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Scientific Name: Hemigrammus sp. (Glow Purple variant)
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Family: Characidae
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Origin: South America, genetically modified for fluorescent purple color
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Size: 1.5 β 2 inches (4 β 5 cm)
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Lifespan: 3 β 5 years
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Tank Zone: Mid-water
π Water Parameters
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TDS: 100 β 200 ppm
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pH: 6.5 β 7.5
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Temperature: 22 β 28Β°C (72 β 82Β°F)
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Hardness: 5 β 12 dGH
π Characteristics
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Slim, streamlined body with vibrant neon-purple stripes along a semi-translucent base.
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Peaceful, energetic, and ideal for community aquariums.
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Very active mid-water swimmers; color intensifies with proper lighting.
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Shoaling fish: shows natural schooling behavior when kept in groups of 6 or more.
π½οΈ Food
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Type: Omnivorous
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Diet: High-quality flake food, micro-pellets, and live/frozen foods like daphnia, brine shrimp, and bloodworms.
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Feeding Schedule: 2β3 small meals daily; avoid overfeeding to prevent water quality issues.
π οΈ Tank Setup & Maintenance
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Tank Size: Minimum 10 gallons for a small school; larger tanks preferred for more fish.
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Filtration: Gentle to moderate flow; strong currents can stress the fish.
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Decor: Fine-leaved plants, driftwood, and open swimming areas. Floating plants enhance shade and simulate natural habitat.
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Water Changes: 25% weekly to maintain cleanliness and health.
π₯ Social Behavior
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Minimum of 6 fish per group recommended for natural schooling and reduced stress.
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Peaceful tank mates only: small guppies, rasboras, corydoras, and other small tetras.
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Avoid aggressive or large predatory species.
β Doβs
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Keep in schools for natural behavior and reduced stress.
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Provide hiding spots and moderate lighting to enhance neon-purple glow.
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Maintain clean, well-oxygenated water to support health and color.
β Donβts
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Donβt keep alone β isolation leads to stress and color dulling.
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Avoid mixing with aggressive or territorial species.
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Donβt overcrowd the tank; maintain proper stocking levels.
β Quick Tips
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Neon-purple glow makes them one of the most striking additions to community tanks.
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Active, peaceful, and beginner-friendly.
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Best visual effect under LED or actinic aquarium lighting.
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Thrives in well-maintained, mid-water zones with other peaceful schooling fish.





