My Blue Acara is sort of terrorizing the green terror. The Acara, no matter what I do, steals food from the terror. He (the acara) is aggressive too, pushing her (the terror) out of the stump-like wood I have. She is surviving, but I don't know what to do. The silver dollars even steal food from her. The acara ate from my hand in 3 days. The Terror hasn't come to the surface in 3 weeks. What should I do?