Huskies need A LOT of exercise or they will become destructive neighbourhood menaces. People don't realise this when they get them. On the plus side, for anyone wanting one, they turn up in shelters quite often because people just can't handle them. Good luck on him. When he is older, get out and run with him every day and the both of you will be happy and fit. Remember these dogs have been bred to pull sleds across frozen lands for many miles. You can't expect something bred for that to quietly sit about on the couch all day without going out of it's mind.