I take it you want peaceful or semi aggressive not predatory correct? If so I would say McCulloch Clowns which are endemic to Lord Howe Island of the east coast of Australia. They look nice are different and not a lot of people have them from my point of view. Also, that 65 might fit them well.Hello! I am asking because i will get a 65 gallon tank soon, and hope to make it a mixed reef, and am looking for some good fish for my tank. What are your favorites?