Arowana is an unique and expensive fish, especially the super red arowana. It is a special fish from West Borneo. Mostly, people could have one arowana in one aquarium. Having more than one arowanas in one aquarium will make them fight each other.  Well, I saw more than 10 super red arowanas in one aquarium. They won’t fight each other because they live together in the same aquarium since baby arowana.