For my beardie, I have to soak the pellets, but they are much larger in relation to his size than iguana pellets. For Tempest, I just leave theim in a dish for him dry. He has no problem crunching them, I hear him at all hours crunching away. I always make sure he has fresh water available though, he will drink from a dish. So basically, I top up his dish when it gets near the bottom
I buy the big jars of pellets and they last me a couple of months, he eats oh, I'd say 1/3cup a day of pellets if he's really hungry, often not even that, but its always free choice.
Now if only my dogs were so easy to feed!