I guess your question all depends on what you want from your pond. Great eating, and perch would be your fish. But perch are predatory and very active spawners. Thus, their numbers can balloon out of control. They also spawn eatlier than either bass or bluegill, giving them a leg up on the competition. If you were wanting trophy bass, I would probably leave them out. If you were wanting a pond with a mor diverse fish population, be careful and keep their numbers in check.