I have a female 4in opaline in a 120g and a male 2in opaline in a Livebearer 55g tank. I'm downsizing and the only place to put the male is in with the female, but she hated him last time and chased him out of the old 55g tank. He survived a horrible beating and fall, so I kept him. But now idkwtf to do with him.....What's the smallest tank size they can be in? Any way to get her to like him? When I got him, he was a tiny 1IN, but she still hated him....