 The sanctioned feeding of these fish and number of visitors to the site has also made it a focal point in the debate over reef management.The potato cod at the site can weigh 6–30 kg, having been fed by divers for the last 20 years since underwater photographers Ron and Valerie Taylor publicised the site.Their numbers have declined as the site has become more popular, with the average number of potato cod seen per dive almost halving between 1992 and 1998.