I need to build another rack or 2 soon and am curious how people with bigger collections have theirs organized. As of now I have males and females in the same racks and have had (knock on wood) no eating or breeding issues. Do most people keep males and females completely seperate? Also curious at what size you bump females up to about a 41qt. I don't have any huge 3000g+ females but a couple probably could use the extra space soon. I think for now I'll do another 28qt rack to seperate males/females then in a month or 2 when I have the extra play money work on a 41qt. Or maybe a combo rack? I'm so indecisive!