The sand is working great so far, they like it and keeps the smell down. I added another section in the middle to
give them more room, now they have 8 x 4 run and a trumpet vine for some shade in the summer.
I tried mulch and straw hay and now removed all of it and left the black soil because it does get wet with sprinklers and rain could not keep it dry and was concerned with bacteria or mites but they did enjoy both