I've been using this with my Russian tortoise for several months now and it's great stuff. For me it was a process to figure out how to prepare it so my tortoise will eat it. What proved to be the most successful was to get a couple of pellets and put them in the lid. Put some water in the lid and wait. When the pellets absorb the water, I spread the grass on kale, carrot, mustard, collard, whatever. He eats it every time. Hopefully this helps someone.