I would say its nothing to worry about. I had the same experience a month ago with my eastern. It was VERY interesting I never saw this behavior from her. Now she is a tame as could be but still has a monster appitite. I started using liquid supplements a week or so before and I actually thought that was related.

**edit** I am STILL breaking up a food fight every now and then. All though I adapted to that just by shoveling the pinks in quicker