puppies are like little children they will get into anything that is left out they also make wonderful vaccuum cleaners. chew toys need to be of a good quality plastic that he can't demolish in the first day, as far as feedind when he is young you feed him twice a day, he needs water on hand all the time tho I do understand you removing it at night, my BIL always used to take his doge walkies just before he went to bed so they could go to the tiolet that way most of the time they can last the night, Bickies can be left out most of the day but do not over feed him with them. If you can keep his diet as close to nature as possible. there is a wonderful site called rawfeeding you can google it and they will give you lots of advice. I hope this helps