Common Name(s)
African Arowana, African Bonytongue
Scientific Name
Heterotis niloticus
Family
‎Arapaimidae
Origin
Africa
Temperament
Semi-aggressive
Maximum Size
40 inches
Minimum Tank Size
500 US Gallons
Tank Setup
Avoid sharp decor since they are very active. It is a good idea to keep ping pong balls on the water surface so their eyes don't get droopy from looking down a lot.
Tank Region
All
Diet
They need a varied diet. Live foods such as crickets, krill, centipedes, mealworms and small fish are good for them.
Breeding
Unsuccessful in captivity.
Compatibility
They will eat smaller fish, so only keep them with large fish.
Ease of Keeping
Challenging
Care
pH: 6.5-7.2, Temperature: 77-86 degrees Fahrenheit
Heterotis_niloticus_The_fishes_of_the_Nile.jpg

By P. Smit, J. Green - Boulenger, George Albert; Loat, L. 1907. The fishes of the Nile. London, Pub. for the Egyptian government by H. Rees, ltd. Pl. XIV. doi:10.5962/bhl.title.51710 http://www.biodiversitylibrary.org/page/35727320#page/62/mode/1up, Public Domain, https://commons.wikimedia.org/w/index.php?curid=50253892
Can live up to 12 years with proper care.

Even though they are called Arowanas, they are more closely related to the Arapaima.