My discus died today after a strange few days and so I am looking for a fish that could spend it's whole life in a 29 or a 55 gallon aquarium. The fish in question must have a personality and can be solitary or schooling, peaceful or aggressive, whatever I just want a new fish that will hold the center of attention in my aquarium. Ideally it should be easy to moderate care and not that expensive, I don't feel ready to delve again into expensive fish for some time.