We, too, used to have a fish tank (it did grow but maxed out at 36 gallons), then we moved to a place that had no room for it and we had to get rid of it and the fish. We started out with quite an assortment and 2 Oscars -- unfortunately, the Oscars preferred the other fish to their food and we wound up with 2 large Oscars. Sigh -- but they were fun to watch.