Hi
Don't have much time so i will just reply briefly. I watched an episode of Wife Swap the other week and these 2 little boys were constantly fighting. The new wife changed their diet. She cut out sugar and the like (eg red cordial) and wouldn't yell at them when they fought but spoke to them calmly about responsibilites etc. As soon as the wives went to their original houses again the real wife put them back on sugar and yelled at them and they resorted to their ways. The other thing that was used was tai chi (or some form of yoga). the results seemed quite amazing. not sure if you know the show called "wife swap". so in summary, this is what worked
- cut out sugar and modify diet
- speak calmly to kids about violence and responsibility for their feelings and actions
- tai chi/yoga/gentle excercises
i'm not a mum so i don't have personal experience
hope this helps