Hey, I recently just got a baby guinea pig (few weeks old) and she is often in a fight with my older piggy. I'm not sure if it's a dominance thing but whenever my younger piggy gets vegetables, my older one would steal if off her and scare her away. And often, when the younger piggy wants to go in the hidey with the older one in it, my older piggy will scare it away by nipping at it. What should I do?