I do as PART of their mix but not exclusively. I mix Reptivite or ZooMed Iguana diet, Mazuri Tortoise Chow, and a handful of Primate Chow all in 5 gallon buckets and add water. I make it of a consistancy where it's semi-hard and will hold a shape. My employees then feed each lizard the desired amounts depending on size. I have been using this mixture the last 10 years with great success in reproduction. I also add Osteoform about once a week but in breeding and egglaying time I add the calcium at least 4 times weekly. Every year I have Dr. Mader run blood values on random lizards or if I even THINK one may have a problem of any sort. Thus far my blood values have been excellent...About once a week I give them veggies as a treat. The stool of my lizards closely resembles stool I've seen in wild Cyclura populations....
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Tom Crutchfield
www.tomcrutchfield.com