I have been down to my LFS and I took a fancy to the german blue ram. I have researched and all my water quality and things like that are fine. I was wondering about what I should put toghether in terms of male and females? I don't want fry and also I don't want too much aggression between them both and other fish. Should I get just one male or female or two females or two males? Also would they be ok with my 3 cory and 6 endlers?