So I'm trying to breed trimacs for the first time. I have these two (male has finally caught up in size w/ female) at about 5.5". They tried to kill each other and I put in a divider - still tried to kill through the divider. I just put them on the same side and added a pair of Rio Cabuya Siquias on the other side and that appears to have done the trick. They are playing nice except for when they try to kill the siquias on the other side of the divider. Keep your fingers crossed - I'll be watching them closely. I'll add another pic w/ the duckweed removed so they don't look green next time. 
