well dusting adds more than Calcium so most breeders have a bowl of calcium regardless and dust every other feeding to every third or forth feeding. But the vita dust had more in it than calcium so I would say no.
I feed my geckos calcium five times a week, d3 once a week and the multi-vitamins once a week. The vitamins go on the crickets. I just sprinkle the mealworms with both forms of calcium.
I dust all mealworms and cricket with Repashy Superfood Calcium plus ICB. You can't get that at Petsmart or Petco. I also use Zoo Meds Reptivite and you should be able too get that anywhere.
I have calcium and Herptitive multi-vitamins in two seperate bottle caps. Then, I dust with calcium every other feeding and Calcium with D3 once a week and herptitive twice a week.
Aside all the dusting,
I keep a single dish of Rep-Cal calcium with D3 in it at all times so the leos can get some when ever needed and the D3 is for there vitamin they dont get from natural sunlight because of them being nocturnal.
Heres what the container looks like.