gold fish fighting PLEASE HELP A.S.A.P (as soon as posible)

Question
helo my fantailgold fish and comet gold fish are fighting please help ive already had to move my third gold fish with giant eyes to separet tank because hes lost a small part of his tail but my other fish are still killing each other right now and i dont have any more tank please help my fish may be killed other wise its mostly the fantail killing the others.

Answer
Hi

it is impossible to kill , they maybe are matting , check the male will be hitting the female with his head from under her belly , and chasing her around the tank , and they also will produce a small white eggs that will full the tank and you can see it with your eyes .

check and tell me please