depends. usually its trial and error. the jag should be fine with other cichlids.its if the cichlids are fine with the jag so you want the jag to be the dominant fish for your tank. jags can be bullied when small but if you have a decent size jag or grow one out to a good size then it will make things easier. i would recomend trying a green terror,jack dempsey,veja argentae,female festae,salvini those are just some choices that jump to mind. the meanest one i mentioned would usually be the female festae but still does not grow to the size of the jag. i would start with a male jag and build from there. if you look at the female festae it is a beautiful cichlid and i think would look great with a male jag. the veja argentae would be my 2nd choice its also a great looking cichlid. hope i helpled