1) Bluefin Gurnard (Chelidonichthys kumu)
2) Synodus Sp. Maybe Synodus dermatogenys
3) & 4) Looks like Sebastapistes cyanostigma. One of the smallest scorpion fish. CF have before.
5) Looks like a threadfin sp.
6) Maybe a Juvenile Hamlet
7) Chilomycterus schoepfii if not wrong.. nearest id liao.. LOL...
8) Dunno..