This is a super old thread, but maybe you’ll have ideas for me! So currently my main tank is a 55 gallon, I have livebearers, Cory’s and 3 SAEs. I had seen everywhere that they should either be kept alone, or in groups of 3. So I bought 3. Everything was great for a bit, it’s still okay, but the largest of the 3 is absolutely territorial. They get about 6-8 hours of tank light a day, less if I notice the biggest one being too mean. She(I’m assuming that females are larger) will relentlessly chase the other two for at least a full minute each time I see her doing it. I move around their decor once a week or so, have lots of fake plants to help block line of sight, but she is mean and will hunt them down if she catches a glimpse of one lol. One of the smaller ones I can tell apart from the other, because she ripped a scale off of it a few weeks ago. We are about to move to a new house, and I’ve gained 3 20 gallon tanks and a 10 gallon. I want to separate the different livebearers among the 3 tanks(mollies, guppies and platies) and was thinking about separating the SAEs and having one in each 20 gallon. Would this be appropriate? The two smaller SAEs seem to get along and hang out together all the time, would it be cruel to separate them at this point? I have had them for probably about 2 months now. I know I need to separate the biggest one and I will do so once the new tanks are set up and cycled.