
Other Freshwater and Brackish Water Fish
Silver Arowana
Osteoglossum bicirrhosum
Photo: User:Qwertzy2 · CC BY-SA 3.0 · Wikimedia Commons
Key facts
- Temperature24–30 °C
- pH6–7.5
- Minimum tank1500 l
- Adult size90 cm
- Difficulty★★★★☆
- TemperamentAggressive
- WaterFresh
Full profile
- Family
- Osteoglossidae
- Origin
- Amazon and Essequibo Basins
- Size
- 90 cm
- Temperature
- 24 – 30°C
- pH
- 6.0 – 7.5
- GH
- 2 – 15 °dGH
- Difficulty
- ★★★★☆
- Water type
- tropical freshwater
- Swimming level
- higher
- Behavior
- aggressive (predator; eats any small fish)
- Minimum number of individuals
- 1
- Minimum aquarium size
- 1500 L
- Diet
- carnivorous (insects, shrimp, fish)
- Reproduction
- oviparous; paternal mouthbrooding
Notes: It is sold as a juvenile measuring just a few centimeters, but it grows to nearly one meter and is a great jumper. Only suitable for very large, securely covered aquariums.





