Hello,
If your dragon is 1 year or under, you will need to use straight phosphorus FREE calcium with or without D3, 5 times per week & the vitamins 2 times per week.
If your dragon is 1 year or older, you will need to cut the calcium intake back to 3 times per week & the vitamins 1 time per week.
If you are using a flourescent tube bulb as your UVB source, you need calcium with D3. If you are using a mercury vapor bulb you will not need calcium with D3.
I hope this helps.
Tracie