Well, for those of you fortunate to live in countries where you are allowed to keep Asian Arowanas, the only way to go is Tank Bred. Catching and keeping any wild Scleropages formosus is illegal because they are endangered. To make sure of it, all tank bred and raised asian arowanas are tagged with microchips and come with a certificate of identification to prove that it was not wild caught. Also asian arowanas are not to be sold until they are 6-7'', the size at which they can be properly tagged without harm.
I still don't understand why we can't keep them in the U.S. when people in Texas can keep endangered species of tigers as pets....