That idea is out the window!!! This is my first time owning an artc and it's different than a rtc.i was actually looking for a etc but found this beast instead. Like someone mention before, the only thing similar between the two is the color of the tail. Now Im getting a 240 put up real soon and if she can't be mix with the other fishes than in gonna put in an ugly divider. I hope it works out. She already won't allowed anything in there. Seriously kill for fun.If you mean a Red Tail Gold (RTG) Asian arowana I'd not bother, the catfish will eat it or kill it
