I have a 55-gallon aquarium. It's well established. I recently changed all of the inhabitants. I have 2 frontosas, one "blue dolphin," a compressiceps, a "labidochromis Lion's Cove Yellow", a common pleco, and one other cichlid (supposed to be dark blue with a yellow stripe on its head when full grown). All of them are between 1 1/2-2 inches. The pleco is about 5-6 inches. I am fully aware that the fronts will outgrow my aquarium and will move them when they get too large. I want to add some peacocks. Would they get along with the others? My current fish all get along great. There isn't any fighting. Any advice would be appreciated. Thanks.