i left the tank divider out and they r almost perfect together now. Still a lil peck or chase but its cool the jack dempseys really thick compared to him, i may put the divider back so he can get bigger but hes even grown since i posted last he eats eveyrthign and the tables turn everytime i drop food in no matter if the con is goin full steam ahead at the feed the jack dempsey will be there and gone before the con knwos what happned also the con is kinda dumb and just swimms straight at the jack all out but the jack is more agile and can whip around and flip and swurve so the con doesnt realize where he went and hes left lookin around. and the pleco just minds his own business and hell get a peck ever now and then but just shurgs it off. The jack has a huge mouth and scared the con away the first few hours but then just stopped ike maybe the convict scared him or summin during the night and the jack realized he was strong and decided to stay out oif his way but the jacks mouth is huge i wish hed just like give him a bite haha.