I have two 6 month old Indian Star Tortoises. I have been feeding them a variety of foods. I have tried many different greens, cactus, Mazuri, squash, and a variety of hats. These guys seem to like to eat the greens, but not much else. They have started to eat a little Mazuri. As a side note, they will not touch the food if I sprinkle calcium powder on it. I want them to eat more Mazuri and some of the hay as well as the greens. I do chop up the hay in a food processor. Any ideas ?