"Highly aggressive and piscivorous. It will eat any fish it can fit into its mouth, and usually batter any it can't. It's best kept in a species tank unless the tank is enormous. Conspecifics aren't tolerated either, although once a pair forms, they usually remain together for life. The best option is probably to buy a group of 6 or so juveniles and allow a pair to form naturally. Keep a very close eye on proceedings and be ready to remove the additional fish once a pair is apparent, as they will usually eliminate the others quite quickly."
That was taken from www.seriouslyfish.com
That was taken from www.seriouslyfish.com