So I am dealing with 2 sharks (bala) that have a rather mean streak going. They each have pinned down my smaller catfish and my algea eater. The cat and algea have gone into secluison within the confindes of a decoration I have. Now the sharks are bored and have taken to going after each other. That being the larger of the 2 is going after the smaller. What should I do to prevent a "death in the family" as it were?