I have 3 groups of 1.3 rats and have a few rats that are prego. So I seperated them first and put 3 prego's together and they seemed to be fighting so I put them into seperate tubs themselves. So now I have one prego in each tub alone. Is this right or can you house a few prego's together? And if you can is there a higher chance of the females killing babies if one of them delivers before another?? I seen that ralph davis puts prego's together and does ok but mine seemed to have been fighting and it wasn't seemingly playfull to me. So let me know how you's do it and what has seemed to work well for you guys. Thanks