Ok, I have a trio of breeder mice that gave me 27 babies at once! They are now over 21 days old, but still seem rather small to be weaned.
Should I leave them all together until next weekend or go ahead and take the parents away now (they have their own tub ready for them)? If I separate them now, should I give the little ones some cooked oatmeal and fruit baby food in addition to the normal block and mix for a few days to make sure they can all eat?

On that, does anyone know how long a small batch (say a cup or so) of cooked oats will stay good in the fridge?