the acrylic wall is about 6 foot tall and about 10 feet in length i think , the tank itself spans 3 such sections.
public aquarium can house asian arowana but i rarely see that many in 1 tank. i was at the same aquarium a couple years back and there were only a couple, i guess they got more in from smugglers who got caught.
it is fair because Denver aquarium is also using those fish for educating people and behind them are a bunch of Government programs and department!
I'm not sure about other public aquariums but seem like only Denver's public aquarium have Asian aros ( as far as I know)