what are you feeding him? have you always had him on this food?
Your lil girl could very well be re-claiming her territory. Boys mark their territory but girls can do the same thing especially if she feels he is taking over and she needs to re-claim her territory. Be sure you always give her lots of love first before the male since she is the oldest and you have had her the longest. She was first in your life and you dont want her to feel left out.
Another question...does she eat her food first and then eat his or what exactly is the routine? (not trying to sound nosey...just trying to understand everything and get some ideas of what is going on so this can be solved!
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