Crossocheilus oblongus
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What to know before you buy.
One of the few fish that reliably grazes black beard algae. Best kept in groups of four or more in a planted tank with steady flow; adults are fast, need swimming length, and are often confused with the less useful flying fox.
Select a tank to see how this species fits.
Everything you need to keep Siamese Algae Eater healthy in a South African setup.
A minimum 120L aquarium suits Siamese Algae Eater. Match décor to natural behaviour — plants, rockwork, or open swimming room as needed.
Keep pH 6–8 and 24–26°C. Stable parameters matter more than chasing perfect numbers — acclimate new arrivals slowly.
Siamese Algae Eater is omnivore — algae, biofilm, prepared foods. Feed a varied diet appropriate for freshwater fish — quality flakes, pellets, or frozen foods sized to the mouth.
Siamese Algae Eater is generally peaceful, active shoaler. Observe during feeding and at lights-out for true temperament.
Pair with similarly sized peaceful, active shoaler tankmates in freshwater fish. Avoid fin-nippers or species that outgrow this fish.
Breeding notes for Siamese Algae Eater vary by line and water chemistry — ask your local shop about proven pairs in SA.
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Price trends and buyer demand — data only FishHub tracks.
SA price range this month: R40–750 · Average: R167
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