This is not a black and white answer. For instance, are you keeping montanes, or veiled/panthers, or something else? What is your uvb status? T5, T8, cfl? What is your gutloading regime?
If you go with the earthpro regime, you need to make sure your uvb is on point, as there is no d3 at all. Likewise, you’ll have to weigh the options when it comes to occasional supplementing of vitamin A, as the earthpro regime has no PREformed A either.
I’ve never used the zoomed products, but the standard regime with using a pure calcium (noD) plus a multivitamin/mineral, plus a calcium (withD) is to use the first at every feeding, and alternate the other two on an every other week schedule.
But you haven’t exhausted all the possibilities here either. For instance, Repashy has several products too. “Calcium plus” and “calcium plus LoD “ have both been used with success for veileds and panthers as an every day all-in-one. The former is typically paired with T8 lighting as per the long tested kammerflage regime, the latter is preferred by those using T5’s, as they push a lot more uvb.
What are you gutloading with? If you’re using a commercial gutload at all, then you should check the ingredients to see if D3 or PREformed A is included, as this might influence your dusting choices.