So, Opie, my female Opaline Gourami was the centerpiece if my 55g Community. She was very peaceful and only showed aggression when going after a wafer or sinking pellets. After a water change the other day she flipped the switch. She wants the whole tank now. She is chasing every fish in the tank, Cories, Swordtails, Tetras and the Ram. She is not defending a single space she is pursuing fish through the whole tank. I gave her a couple days to settle in and she hasn't so I had to move her. She is now in the 20g long. I am fine with her staying in here, my question is, will she be okay with no tankmates? She seemed like she didn't want any in the bigger tank. Maybe in a couple days I can try to put her back?