Acropolis is just a mass of fish.  It is a very large bommie - too big to circumnavigate unless you are really good on your air.  It is best at the 5m to 15m depth where there is more fish life, and more different corals than anywhere else we have seen.  There are schools of different coloured fish everywhere.  There are also wonderful plate corals here.  We really loved this site and would have loved to do more dives on this bommie