What should the ratio of m/f be on GBR's? I just got a male (no females were available there) but found a source for females so I'm going to head out there tonight. I know usually you want a 1:2 m/f ratio but I've heard both 1:2 and 1:1 for GBR's. Should I get 1 or 2 little girls for my little guy? It's a 29g. If my little guy turns out to be a girl, would 2 or 3 girls get along okay?