Nice post Michael.Hello,
Unfortunately there are not any fish that will "school" in the aquarium. There are many fish that will shoal though.
IMO Damsels and Chromis are not the best choice for shoaling fish. They can get aggressive and they just to not add the personality that many other fish can.
I really like the Blue Eyed/Longspine cardinalfish.
Another thing to consider would be dartfish. I think that a small group of these sweet little fish would look nice:
I also like the idea of a harem of flasher wrasses. One male and two or three females. These fish add so much color to a tank, and display many different color patterns. But you will need to keep the tank covered to prevent them from jumping out.
I would steer clear of any tangs. You could keep a smaller tang in a 65, but the small space would likely lead to aggression.
~Michael
The cardinal fish are a great choice for a group of fish. I also like the clear ones.
Unfortunately the fire fish will not stay together for long once they become comfortable. I have tried and it took me over a year to catch all of them once they went on their own. I still have one in the sump
If you want fish to group in a salt water tank you need a large tank with a few aggressors to keep them scho, ah um shoaling!