I am upgrading my 75 gallon bottom feeder tank to a 180 gallon tank. The only fish I have in my 75 gallon are a 7" featherfin and a 18" pleco who is the main reason I'm upgrading. In my 180 I'm looking for ideas for some larger active fish that won't bother my catfish or any other catfish/bottom feeder species that won't bother them either. I don't want to get anything that will get too big or is super expensive/super hard to care for. One of my ideas was doing a cichlid tank or having oscars, would they be compatible with my featherfin and pleco? I am open to any ideas and really want to get some awesome fish.