You might not believe it, but if done properly, shark tank cleaning is a pretty safe job according to aquarium bosses. Even though the divers spend their working days submerged with the razor-teethed killing machines. In the UK the divers don't swim with Jaws, nevertheless some of the Great White's cousins are more than capable of taking a fairly big bite out of your body. Wearing just a wet-suit and brandishing nothing more dangerous than a brush, the tank cleaners rely on their knowledge of the shark's behaviour to keep them safe. Aquariums only use divers who are already highly experienced and further specialist training periods tend to be mandatory, as are medical checks. They never go into the tank alone and a supervisor provides a third set of eyes by watching from above. But still........
