I just got two sisters four days ago. They are adjusting really well! Purring, making biscuits, exploring, playing, eating, using the litter boxes. The only thing is they have food aggression. I give them separate bowls and enough food. But one specificity will go and steal her sisters food and growl at her. The one getting the food stolen does growl too but not as much as the other one. I’ve seen this can be normal and they can grow out of it? Also seen to try to desensitize them? I really don’t want to do the wrong thing and mess them up for life.