I keep asian aros w/rays no probs, as do alot of members here. silver dollars could be eaten, or left alone. gonna depend on the individual aro really.
There's no doubt that HBG is a much prettier fish than Black Arowana as I see it. But I'm still thinking about if the HBG is to aggressive for the other fishes in the tank 'cause then I wanna go for the Black instead.
My question is really if the HBG is an a aggressive fish and if there's a chance that it'll attack the others?