I have two Red Zebra Cichlids and one is being aggressive towards the other. The aggressive fish is Fish A and the victim is Fish B. I had about 5 red zebras but three died. After the others died Fish B was really aggresive towards Fish A. It tore off the tail and most of Fish A's scales are missing. I isolated Fish B and starved it for about 5 days. When I reintroduced it back into the original tank, Fish A became aggressive towards Fish B. I will try to post a video if I can. Fish A is trying to get under Fish B. Is it possible that Fish A is trying to fertilize eggs?