I have not personally used it. I find that coco fiber works great and all my Pacs seem to love it! I have heard of people using leaf litter for pacs, but I haven't heard too much about long term usuage/effects of it. I have also read that they bury in it in the wild. There is very little scientific research regarding horned frogs in their natural habitat though. Most of what we know is found out through trial and error of pet keepers. I have read about leaf litter used for other types of frogs. As far as that goes, I beleive Magnolia or Oak leaves are popular. They can be purchased or collected. If collected, it is very important to make sure that no chemicals have been sprayed on or near the tree. Any collected leaves should be boiled for about 15 minutes to help prevent the spread of parasites and fungal infections. After boiling, the leaves should be dried before placing them in the enclosure. They should be crisp and “brittle.” You can speed up the drying process by putting them in an oven on a baking tray to dry them - temperature about 120 °C / 250°F. Takes about half an hour to an hour, depending on how many leaves you try to dry at once. Other leaves, such as Maple, may be used, but they are not as robust and will rot away sooner. Although

However, I would still be very cautious about using leaf litter. It is easier for them to digest than say sphagnum moss so there is a lower chance of impaction, but there is still some risk. It does not pass through as easily as coco fiber. The leaves should definitely be dried out; their bodies are not really equiped to digest green (as in fresh) leaves. I would be interested to hear experiences from someone who has used leaf litter for Pacmans long term. Hopefully someone will chime in. But personally, I stick with coco fiber since it is tried and true! :-)