I just started breeding rats not to long ago. I put two pregos together in a tub and they both gave birth to 11 pups each, one day apart from each other. The rat who had here litter first is nursing all 22 babies. The other rat just sits in the corner opposite of the babies and is not nursing any of her own. Should I just leave her where she is, or should I put her back into a breeding tub to make more babies, or should I feed her to one of my snakes and get rid of her?