not sure if i can fit three arowana in with three motoro in 720 gallons, but im not sure if id risk the extra waste produced. didnt realize the tank in going for would be so huge.....
i got your pm redtail. maybe for a tank of that size an acrylic would be the safer route. i mean it wont hold up if it falls down, but whats gonna tip over a tank of that size on a level surface?
nothing really if its level and if its that wide it should be fine but your gonna need a very nice steel frame stand for it and if its going in the basment bolt that thing down