hi, need advice reg. my mouse colony, i have 1 male & 4 females in a 50gal tank,i remove the male after making sure that all 4 females are already pregnant, yesterday 1 of the female gave birth,i dont know the exact number of babies but i saw 3 of them,after that i just put food in the tank and didn't bother them anymore, but when i check my tank this morning all the babies are gone,i've check the beddings and saw a headless pinkie. i still have 3 pregnant female,what will i do now? should i continue breeding this colony? give them another chance or i should cull them all and establish a new colony? it's my first time doing this,don't have an experience,help pls...