The Australian Arowana is the 2nd most commonly sold arowana next to the silver arowana here in the Philippines. The store owners tell me that this arowana has a very fearsome reputation and was reported very hostile to other tankmates so it is better to be left alone in a tank. Although I haven't seen an adult australian, the juvenile seems to match the silver arowana in terms of its appetite. I currently have an australian arowana which I named "HOGY" and from what I have observed, it grows faster than its Indonesian or Malaysian counterparts. The running price of this arowana ranges from PHP 750-1100 for a 3 inches juvenile.