Tank setup
A minimum 75L aquarium suits Black Widow Tetra. Match décor to natural behaviour — plants, rockwork, or open swimming room as needed.
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Freshwater Fish
Tetras & Small Schooling Fish
Common
Gymnocorymbus ternetzi
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Fellow hobbyists may also be selling Black Widow Tetra.
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What to know before you buy.
A hardy, deep-bodied tetra sold in normal, albino and long-finned forms. Keep in a group of six or more; small groups tend to harass long-finned tankmates.
Select a tank to see how this species fits.
Everything you need to keep Black Widow Tetra healthy in a South African setup.
A minimum 75L aquarium suits Black Widow Tetra. Match décor to natural behaviour — plants, rockwork, or open swimming room as needed.
Keep pH 6–7.5 and 22–26°C. Stable parameters matter more than chasing perfect numbers — acclimate new arrivals slowly.
Black Widow Tetra is omnivore — flake, frozen. Feed a varied diet appropriate for freshwater fish — quality flakes, pellets, or frozen foods sized to the mouth.
Black Widow Tetra is generally active shoaler, can nip fins. Observe during feeding and at lights-out for true temperament.
Pair with similarly sized active shoaler, can nip fins tankmates in freshwater fish. Avoid fin-nippers or species that outgrow this fish.
Breeding notes for Black Widow Tetra vary by line and water chemistry — ask your local shop about proven pairs in SA.
From hobbyists across SA.
Price trends and buyer demand — data only FishHub tracks.
SA price range this month: R30–120 · Average: R50
This data is unique to FishHub
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Species that typically work alongside Black Widow Tetra in a similar setup.
Pristella Tetra
Pristella maxillaris
Glass Bloodfin Tetra
Prionobrama filigera
Flame Tetra
Hyphessobrycon flammeus
Ember Tetra
Hyphessobrycon amandae
Cardinal Tetra
Paracheirodon axelrodi
Buenos Aires Tetra
Hyphessobrycon anisitsi
Ruby Tetra
Axelrodia riesei
Green Neon Tetra
Paracheirodon simulans