Your containers should arrive cold & will last one week in the fridge & one year in the freezer. Thaw in the fridge a day or two before use.
So only keep one to two containers* in the fridge at a time and the rest in your freezer. You can move the containers in the fridge a night or two beforehand to help ‘em thaw out. But don’t sweat it, you can always pop a container in the microwave if you forget.
*Dog parents with small dogs should keep just one container in the fridge at a time.