CooperDragon":578qf5uz said:There are several options. I prefer a solid substrate because it's easy to clean and sanitize. I use ceramic tile. I've found it can be a bit rough on the feet on it's own after a while so I have fleece blanket down over half of it to make it a bit softer. The fleece is easy to throw in the washer to clean as needed. A lot of folks use non adhesive shelf liner which is also easy to clean/sanitize and can be thrown away and replaced easily if needed.
Taterbug":3obj12bi said:I use a bioactive soil mix, I really prefer a naturalistic setup.
Before that I used a mix of shelf liner and paving stones for the floor.