Yes, but tank size is everything. You've got to provide enough swim space for the aro and provide enough space for territories for the cichlids. In the long run a massive tank is required just for the aro.. Aros usually will not fight back with a cichlid, they just flee. I'm not saying it can't be done, just consider the tank space needed. I'd say at a minimum something with the foot print of 10'x3' and a bit tall to give the aro the swim space should do it. something in the 3' tall range would work :thumb:
they look so fragile i cant see how they could kill another fish other then by swallowing it whole? Could never see one hurting or doing anything to a large Cichlid. I always saw them as dither fish like a tinfoil barb or bala shark just with a bigger mouth!