Should I give my sugar gliders a calcium supplement on top of their fruits and vegetables every night?

Not unless your particular diet calls for it. If you sprinkle vitamins on the food you could easily be overdosing your babies! How could you measure a sprinkle?

I use the OHPW diet, and the vitamins and minerals are in the Wombaroo powder that is measured and mixed in with the eggs, honey and bee pollen.