i had a make a new recipe puppy milk with cereal and fruit, is it possible to feed puppy milk to my 6 months old sugar glider as a calcium supplement. how often should i feed per week

No, you should not supplement your glider with puppy milk. If you are looking for calcium to use in a specific recipe, DO NOT substitute with milk replacer. While it has calcium in it, it has many other things as well and is not designed for anything other than supplementing milk in newborns.