Well right now I have a FM, Con, and a Salvini in a 40 breeder. All males except for the FM but shes not mature yet so there is no friskyness from the con. Really no aggression problems so far besides the FM, shes a MAJOR B**CH! Other that fine. I also have a Red Tiger Mota in there but him and the sal are going into the 125 in 3 days. I am overstocked with just the Salvini, FM, and con( did this on purpose because I knew my 125 will be setup so don't flame) ... so i recommend to you that you don't put all those fish in. The sal, Fm, and con will work until they get to 4 inches then they need an upgrade. All mine are still sub-adults. Your best bet is:
option1: 1x sal 1xFM and dithers or a pictus cat
option2" Sal, Con, diths, etc
option3: con, fm, etc.
This will be fine for life.