Toy Maltese puppy male

We bought a beautiful Toy maltese puppy a few weeks ago but it’s not working out with our elderly dog.
We tried to give some time to adjust but our older dog will not accept him so we have decided to find a new home for him.
He is just over 3 months old.
Very sweet with a laid back personality.
He comes with everything we have.
$900 - we paid nearly double that amount and have only had him a few weeks.