nipped fins and scratches!!!!!

[abrahamavelar]

hello once again, today i noticed that my tank became a fighting ring my fire fish who used to get along really well have been fighting each other and their tails have been nipped but still hang together, my hippo tang looks like if it got scratches all over he is about inch and 1/2 long and my royal gramma also has some nipped fins is there any medication i can give them so their scratches and fins heal faster, and will they grow back???????????????? and i forgot to say that they eat nomal just like when they had normal fins and scratches