i have these vitamins and stuff used them for tokays will they be ok for leopard geckos first one is Herpcare is the brand its a calcium and vitamin D3 supplement should i use this and dust the crickets with or should i put in a little dish in the cage next is a cricket dust same brand Herpcare should i use that for crickets and then the calcium and vitamin d3 supplement in a dish in the cage the supplement says i should ad so much to the food im feeding so use just that and use it to dust crickets with and not worry about the other or what any help would be great