Hello, There is a problem in my tank right now and I am trying to find the culprit. I have a 55 gallon with mixed african cichlids and for the past 2 weeks ive had 2 fish get killed and 1 severely beaten and i have 2 suspects and im hoping you guys can weigh in and tell me which one to get rid of. culprit 1: Full grown male Auratus which I like very much Culprit 2: 2 Jewel cichlids ( medium sized) I keep my tank clean . I use the gravel vaccum and clean the substrate every week and change the water also. . I dont know if my auratus is in breeding mode and if they are alot more agressive then they usually are in this period.