i bought a female for my 10 inch male rd in attempts to pair them,well at first he showed a lot of interest before full blown attacking,biting with a lot of force,taking scales off relentless chasing.there would be breaks in between all of this where they would circle each other really slow and then the abuse would begin again.i put a divider in for a few days after which i took it down and gave her hiding spots.the last day before they finally paired a week later they mouth locked and he beat her up, after which they were a real pair, following each other around,0 aggression between them. they havent spawned yet but just hang out together and making a nesting site.my question is there a reason why now is he waaaay less aggressive towards everything.even other fish in the tank he finally tolerates besides a little chasing here n there.this guy has been in his own tank for years and didnt like anything in his tank even the armored pleco which now he even tolerates it going into his territory.i have put a couple of blue gill target fish in to give them something to hold their bond and team up against and they tolerate them pretty well as long as they stay on their side of the tank.no signs of stress from either of them,he doesnt even bite the glass anymore like he used to.all things *** read about them breeding says they are both supposed to be extremely aggressive during this time which they are clearly not