I agree with Harrysmum. It isn't necessarily a walk that is needed to release energy but some sort of play time/exercise is helpful for dogs. My dogs don't get walked much at all, we go through spurts with walks, but they get to run and play every day. We will throw that tennis ball as much as Blazer (our Yorkie) needs and we will let Buddy (our German Shorthair) run outside as much as he wants, and of course they like to play together. You have other pets, so hopefully they will like to play with the new pup and help with that energy expenditure.
