To me it seems a little heavy on the D3 and vitamin. Brands would help us understand. Over supplementing can be as dangerous as under supplementing.
I use the supplements in the picture below like this:
Repcal no D3 6X weekly
Recal with D3 2X monthly
Herptivite 1X monthly
Now for babies depending on species I may use Herptivite 3-4X monthly as they are growing like crazy, but for anyone over 6 months I follow the plan above. Someone once told me, and it stuck, that when you dust feeders don't shake 'n bake em, meaning you don't want white powdery feeders!