🐟 Black Arowana (Osteoglossum ferreirai)
🐟 Black Arowana (Osteoglossum ferreirai)
Freshwater Apex Surface Predator • Genuine Jet-Black Juvenile Coloration That Silvers With Age • Genuine Regional Conservation Concern
📋 The Black Arowana is genuinely restricted in the wild to Brazil's Rio Negro basin, distinguished by a striking jet-black juvenile coloration that genuinely fades toward silvery-blue tones as the fish matures.
We want to be genuinely accurate here: while this species is assessed as globally Least Concern by the IUCN, it's worth knowing that heavy historical collection for the aquarium trade has genuinely raised regional conservation concerns — Colombia's own Red List classifies it as Endangered specifically due to over-exploitation, even though the broader global assessment is more favorable. We stock genuinely captive-bred stock to support sustainable availability.
This is a genuinely large, long-lived apex predator, reaching up to 90cm, requiring a very large aquarium, a secure tight-fitting lid given this species' documented jumping ability, and a genuine long-term commitment. It's also genuinely more solitary and territorial than the Silver Arowana, particularly around breeding.
⚫🐟 Highlights
⚫ Genuine Jet-Black Juvenile Phase: Silvers with age, a striking transformation
🌍 Genuine Regional Conservation Note: We source genuinely captive-bred stock
📏 Genuinely Large & Long-Lived: Up to 90cm, a multi-decade commitment
⚠️ Genuinely Territorial: Best kept solitary, especially around breeding season
🐟 Genuine Rio Negro Native: A rare, sought-after South American showpiece
🧾 A Quick Look at the Black Arowana
📛 Common Name: Black Arowana (Black Aruana)
🔬 Scientific Name: Osteoglossum ferreirai
👨👩👧 Family: Osteoglossidae
🌍 Origin: Rio Negro basin, Brazil
📏 Max Size: Genuinely up to 90cm
🧂 Water Type: Freshwater
🌡️ Temperature Range: 24–30°C (75–86°F)
🧪 pH Range: 6.0–7.5
🧠 Care Level: Advanced — genuinely a serious, specialist commitment
💖 Temperament: Genuinely territorial and solitary, especially during breeding
🏠 Min Tank Size: Genuinely 950+ L (250+ gallons) at adult size
📌 Tank Level: Surface Dweller
🧬 Stock Type: Captive-bred; globally IUCN Least Concern, genuinely regionally endangered in parts of its range
⏳ Lifespan: Genuinely 10-20+ years with proper long-term care
🍽️ Diet: Carnivore (insects, small fish, prawns, high-quality pellets)
🐣 Reproduction: Genuine paternal mouthbrooder; low fecundity, matures around 2 years

















