Originally posted by kona001
I highly doubt that you had other fish inside the tank with the arowanas and they lived in harmony. The many tanks I've seen have the other fish hiding for their lives in fear of those fish. They eat all fish you put in the tank rather quickly (one at a time). (It's an impressive sight to see.) Now, if you are talking about the baby arowanas, they can be in a tank with larger fish and they aren't too bad with them until they get hungry. It would be nice to see a baby one in the tank though. Arowanas are hard to maintain because they need extra care and die if they are mistreated (tapping on glass at petstores).
I checked out your website and found this link to be what you probably intend for mixing awrowanas..
http://www.arofanatics.com/index.php...ankmates01.mpg
That red parrotfish is one mean fish also.. 
bro i have been keep arowanas with other tropical fish around for 1yr + so far there they live in perfect harmony...
there are many professionals in the forum who keep a whole tank full of many arowanas which is a magnificent sight and they live together peaceful..some example
http://www.arofanatics.com/members/t...oorfibreglass/
http://www.arofanatics.com/members/tea/redcommunity3/
http://www.arofanatics.com/members/k...dex.php?page=4
other examples of tropical fish mixed with arowana..
http://www.arofanatics.com/members/i...n2/image01.jpg
http://www.arofanatics.com/members/r...lesetupofmine/
don't forget to check out some of our japanese friend's gallery mstly consist of giant mature arowanas staying together..
http://www2.wbs.ne.jp/~arowana/egallery.htm
do..check out my personal gallery as well can see my humble collection of fish mixed together with my arowana
http://www.arofanatics.com/members/lostboi/
arowanas are tough fish if u know the proper ways to care for them many have kept their fish alive for 10+yrs....
i have a friend whose arowana just died aged 29yrs....
cheers hope to bring this hobby to more pple out there with the creation of the screensavers...