I currently have multiple tanks. My husband helps feed my fish habit in a bad way. My whole life I've always had a friendly community tank. Well my husband fell in love with Elvis and kept saying how he wanted to own him. After seeing him in the lfs for months all by himself. My husband said Elvis told him he had to come home with us. Now my problem. He brought him home so he wouldn't be lonely yet he doesn't get along with any other fish. He will chase everyone to the point they have no energy, he even tries to intimidated my other tanks I'm had to black out the sides of his tank so he can't see them. Is he just a jerk who wants to be alone. Or what could I try.