hi everyone im new to ausfish and think its great

ive been fishing the local reefs off brunswick heads but cant seem to find fish on them
i can find tuna and other fish feeding but cant find any reef fish, snapper or pearlies
the reef looks flat on sounder,should i keep looking for structure or fish the edge of the reef?
any advice would be great and any gps marks would be better(pushing luck there)

thanks [smiley=lipsrsealed.gif]