Inpaichthys kerri
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What to know before you buy.
The Purple Emperor Tetra, or Kerri Tetra, displays a beautiful iridescent purple and blue sheen over a brown body. They are a peaceful shoaling fish, similar in behavior to the more common Emperor Tetra. Their subtle but striking colors are best appreciated in a well-lit planted aquarium.
Key traits
Select a tank to see how this species fits.
Everything you need to keep Purple Emperor Tetra healthy in a South African setup.
Size the aquarium to Purple Emperor Tetra's adult size and activity level. Match décor to natural behaviour — plants, rockwork, or open swimming room as needed.
Keep pH 6–7.5 and 24–27°C. Stable parameters matter more than chasing perfect numbers — acclimate new arrivals slowly.
Purple Emperor Tetra is an omnivore. Feed a varied diet appropriate for freshwater fish — quality flakes, pellets, or frozen foods sized to the mouth.
Purple Emperor Tetra is generally peaceful. Observe during feeding and at lights-out for true temperament.
Pair with similarly sized peaceful tankmates in freshwater fish. Avoid fin-nippers or species that outgrow this fish.
Breeding notes for Purple Emperor 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: R30–45 · Average: R39
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Species that typically work alongside Purple Emperor Tetra in a similar setup.
Pristella Tetra
Pristella maxillaris
Ember Tetra
Hyphessobrycon amandae
Glass Bloodfin Tetra
Prionobrama filigera
Flame Tetra
Hyphessobrycon flammeus
Cardinal Tetra
Paracheirodon axelrodi
Green Neon Tetra
Paracheirodon simulans
Ruby Tetra
Axelrodia riesei
Buenos Aires Tetra
Hyphessobrycon anisitsi