Gary the Gourmani fish eats nothing but Kit Kat bars -- and now has to go on a diet (but still likes to be petted like a cat)

LONDON aquarium staff have weaned a chocoholic giant gourami on to a healthier menu of grapes and bananas after inheriting the creature raised entirely on Kit Kats.

Staff at the Sea Life London Aquarium were baffled by the four-kilogram fish's refusal to feed, until they learned the gourami, named Gary, 40 centimetres long, had been brought up on chocolate.

So the team stuffed crushed Kit Kat pieces inside grapes to get Gary (left) to ''take a break'' from his daily fix.

''I have never heard of a fish being fed chocolate, let alone being brought up entirely on the stuff,'' said Gary's handler, Rebecca Carter.

''Gouramis usually eat a diet of fruit but Gary doesn't appear to have suffered any ill effects from his chocolate addiction.

''However, we would not recommend feeding fish confectionery of any kind.'' (more)