The water in the 3 gal aquarium is quite murky, almost trashy. The water in the 10 gal tanks is clear. It was when the water in the 10 gal tank that I had put potatoe water in cleared up that the scuds disappeared. Apparently they do better with a lot of "stuff" in the water. The leaf litter probably helps a lot. I don't have any in my aquariums. The baby scud aren't all the same size, but maybe the difference is between males and females, or maybe they're different litters.
