Red Indian fish, Pataecus fronto. Note big pectoral fins that look like 8 finger hands and help the fish to move and grab among the sponges and corals. It is a relatively rare species and we don't know much about it's biology. But it has been discovered that, like the snakes, it regularly moults. When it grows, or the skin is old, it changes it as if it were a used outfit, in one swoop, getting rid in the meantime of the parasites and the encrusting weeds. Australia. Composite image