thanks agian , but their very healthy and they been in this tank for 6 months could it be that there is no other males or communtiy ,he seems to pick on her till she get sick of his **** and kicks his big ass all over the tank and this just started before they wouldnt fight as much and they arent doing anything but sizing each other up if i thought the fish wrent ok in there i would glady give them up ,do you have any idea how to sex 5-6 in red devil cichlids