I have a 55 gallon tank with one jack Dempsey no bigger then 5 inches and a common pleco . i was wondering does anybody have any suggestions of cichlids i can keep with the jack, i would like some dwarf cichlids as tankmates ? i know convicts do not get very big and can hold the own , so i am looking for aggressive dwarf cichlids along the line of the convict that can be kept with my jack and will not grown my 55 gallon tank , the only two cichlids i can think of are the convict and the jewel cichlids , any suggestion would help me a lot a bunch