what size is the tank your cycling for him, is he gonna be socializing in there? i have a bit off a theory on 'aggressive fish' imo alot of these fish can be kept in community's but because people are reading online how bad they are they are getting bad rep, then theres the people who live feed these aggressive fish slowly raising food size until they are feeding an 8inch bass to a 2 ft giant snakehead... most snakehead commune pretty well, i know alot of people who keep giants with fish from 2 to 12inch no problems. im not saying the blackdevil will be fine at all as this is the most risky fish ive tried but i believe theres a chance if the other fish are bad enough themselves and theres places to hide...
