Simple question, how much (if any) soil is needed between the grass mat and the fleece barrier?
I'm building an enclosure for my tortoise and I want to place grass on trays for it to roam. The trays are 8 cm depth (3 in), I will have a bed of expanded clay with a fleece barrier on top for drainage that takes about 3 cm (1 in) leaving 5 cm (2 in) for the soil + grass. Is it enough?
How thick are grass mats? How much soil is needed? I plan on using Zoysia Emerald grass (it is short and readly available here).