I got two Crested a couple of months ago. They had been brought up on only Repashy until then, but I'm mixing Repashy and Pangea every other day, and lately have been feeding them Dubia once a week as well. I have not been dusting the dubia yet, and I'm unsure if it's needed. What would people recommend, should I feed them dusted or undusted, and if dusted, with or without D3?