I'm not very knowledgeable when it comes to fish. I was given a pair of red parrots and fell in love with them. They spent their lives together and now the male has passed away :( I've never added any fish to their yank and have heard some horror stories. What i do know is that my female is being skittish and looking lonely and i need to get her a friend or give her to someone that has room for another. Any advice on adding anything new for her?