i just bought abought 6 juviniles from my lfs at about an inch each. i noticed the dominant male almost right a way. he killed 2 within 2 months. theese fish grow fast, so when the got about 6 inches or so i started to see the bond forming between the two. i moved them to a 75 gal. at first, the male was trying to kill her. i put a male red devil in there with them, and that did the trick. they ganged up on him and the bond got stronger. theese fish are super protective of there fry, so beware. other than that, nothing special was done. as i stated before, my pair was lost in katrina