Diet is an issue as there is very little he will eat. I have weaned him off sunflower seeds and he will now eat some pellets but mostly he eats nuts (I am trying to reduce those) and he will eat egg, apple and peas (if hand fed). That is about it. Once on a while he may take a carrot. He has gained weight (from 400g to 410) so the vet wants him to excercise and cut down on nuts and is saying he still needs out of his cage 4 hours a day.