It's not difficult at all, but here are some rules. First of all, you should give him fresh water and food every day. Secondly, you shouldn't let him out of the cage, it can bite you. And the last one don't move the cage, it is afraid of any movements. Thank once more for your help!
сама, что в голову пришло)
можно should и shouldn't заменить на must и must not соответственно
мне 29 лет, полагаю, это многое объясняет ;-)