Kids fight

Check out Eight Ideas To Stop Kid Fighting. I hope it's helpful.

Depends on how they fight, I think it is normal for a little bikering.

Sometimes if one gets more attention then the other, this can cause jelousy.  Try taking them fishing together or something where they can be together, but not feel like they have to spend time together.  Try asking each child why they fight, if they are old enough.  Get them together and have them both decide on an activity to do as a family.  Good luck.

Kids usually fight and that is normal, it can get out of hand sometimes like it did between me and my younger brother when we were small. You will have to things that keep them engaged for a lot longer and things that interest them. What you can do is get them some inexpensive but good to play toys. If they fight so much then get them marshmallow shooters so they can play a fighting game but not hit each other.