Cleo is aggressive but I think Peaches is way more aggressive, actually, I say both are at the same level but Cleo has long fins so she gets beat up easily. I'll try introducing her tomorrow evening and if Peaches is still psycho killer like, she can go into the cup as punishment. I'll see how that works out for a few days. How does that sound?
Cleo is out of the tank for now. She was stressed and had white stringy stuff on her. ( It has disappeared now that I moved her to new water). The other four are still in there and things are mellow right now. Peaches is the alpha atm, she seems to have a problem only with her the other females are just flared at.