I had to move home and I took it to my local fish shop where I knew one of the workers kept large fish like this so I trusted him. He put it in with his puffer and apparently they got on ok but after a few months they started picking at each other so he had to give it to someone else who had a large tank with 2 other Asian arowana in, not long after this the 2 aros in the tank killed him. I was truly gutted when I was told
I had him for 3 years almost 4 and after I moved he probably lasted another 8-10 months.