Big fish is a male blue grouper, a big wrasse fish that hangs around divers trying to get them to feed it, gets up to 1.3m (4 and a bit feet) and has an impressive set of peg-like teeth. The small one is a cleaner clingfish, a tiny little fish about 3cm (1 inch) long that spends most of its time clinging onto the bodies of other fish and eating parasites of them. Title is a play on the On Giants Shoulders quote by Sir Isaac Newton. Taken at Botany Bay, Sydney.