what's your setup? when I kept Tokays I used the same as my other tropical geckos. 3 parts organic potting soil (no fertilizers) to 1 part eco earth or coco fiber, then a layer 2-3" of Oregon tree moss over the dirt. with plants in the dirt. holds humidity well, absorbs an astonishing amount of fecal material before it needs to be changed, and and it looks and smells nice.