There are many different recognized diets out there that you can feed your glider. By the way I'm very sorry for your loss, hugs!
Diets include:
~ HPW Original, Plus, or Complete
~ BML (Bourbon'd Modified Leadbeaters)
~ Priscilla Price Diet
There are even more but I didn't make it past that before I had my gliders and they were already on HPW Original. I switched them to the Plus last year (I also add 1 cup of Odwalla Superfood or you can do Naked Green Machine) when it became available and haven't looked back. The calcium to phosphorus ratio for gliders should be 2:1 Ca:Ph.. The great thing about HPW Plus is that it already has that in it, so you can feed a wider range of fruits and veggies. Take a look and see what would fit you and see if your glider likes it. Keep going til you find something that clears the plate.