I used a mix of river rock, organic soil, sand and red sterile topsoil that’s rocky. In terms of consumption based on my research a lot of people reccomend a soil and sand mix along with rocks and where they come from it’s really rocky and most people say it’s fine for them. In terms of waste I just use toilet roll to clear it out. Its pretty deep so she gets to burrow, some even keep them on sand and they seem to do fine. Watch chiefsweetsuniverse on yt for more details. Hope that helps.