180gal

What is everyone's opinion on an Arowana in a 180g? I have 2 Oscars in the 180 with 6 silver dollars, and I eventually want an Arowana to grow out in another tank to put in the 180g. I understand I will have to upgrade to a 250-300 gallon in the future, but do you think an Arowana could go well...

As some of you may know already I have 15 x silver dollars and 1 x Jardini in my 180 gal. Then 7 x Geophagus Tapajos in my 40ish gal. As of now everything is balanced, no aggression, great water quality (water change once a week as soon as nitrates reach 20ppm, sometimes every 5 days if its a...