I have a Midas, Green Terror, and Managuense in my 90 (if you think I'm overstocked, save it. That's not what I'm asking). Are there any non-cichlid bottom feeders you might recommend that I could put in there with them? I was thinking some cory's? Or some kind of smaller catfish? Some people have even said they put tiger barbs in there but I'm afraid my Midas would probably destroy them. Thanks in advance for the advice!