Cod the size of a man are no longer caught in the world's oceans. Lurking amongst the crevices are the menacing congers, but their look is worse than their bite and our divers are at no risk when they enter the tank to feed and clean on most afternoons. As well as these huge eels, other fish gather around the divers in the same way as birds around a bird table. Amongst the most attractive are the brightly coloured wrasses which have no fear of divers and often swim right up to the face mask. The male ballan wrasse, resplendent in bright reds and greens peppered with white spots, can often be seen resting on top of the rocks.
Wrasses are sex changers.
A male often guards a group of females and if he is removed by capture or death one of the females becomes male to take his place.