I inherited a tank from a family member 6 months ago and I've surprisingly become addicted to these cichlids. I currently have 13 in a 60 gallontank 3 of which are Male Red Zebras. My 3 red zebras are aggressive to say the leaat, they seem not so much territorial but just aggresive towards eachother. They basically ignore everyone else in the tank. Since there's females in the tank, my question is if I remove them and put them in a separate tank with no females will the aggressive behavior continue? They are not slowing down at this point and I'm afraid someone is going to get killed and I don't want that. Any advice, suggestions would be greatly appreciated and thank you in advance.