It isn't good for him, not sure why but I read somewhere it is toxic. Don't know if that is true but I give mine romaine lettuce-they love it O0 I also give them kale, cabbage, celery, chicory, carrot (but not too much as it is too high in vitamin A), baby corn, cucumber, pak choi, carrot leaves, grass, plantain and yarrow occasionally (which I grow) and some dandelion leaves now and again (which I pick!) not too many as can give them runny poo. Also a little parsely, apple or pear once or twice a week :smitten: