Make sure you use the Veggie Dust and not the Calcium Plus.... They are not the same thing. I think the Veggies Dust is supposed to round the nutritional value of the veggies. The Calcium Plus is designed to be used on insects.

And, also, I've heard a lot of good thing about Mazuri. A lot of tortoise keepers are using it and as a result, safe many tortoises' lives.... I wouldn't mine using their iguana pellets either.