So, I have a 29gal planted tank. Current occupants are 8 corydoras. I have 8 serpae tetras in QT right now. I was originally going to get a dwarf gourami as a centerpiece fish, but I have since learnd that serpae can be fin nippers so I'm not sure thats a good idea anymore. Heres my questions: Is there a centerpiece fish that would pair better with the serpae? Or should I just get more of them and keep it as just them and the corydoras?