Tried as an alternative to pangea and my gecko can't get enough
We mix this with sand and sieved topsoil and it's great. Doesn't contain the little mineral/ calcium pebbles the other 'tortoise' substrate by the same company contains, which I wouldn't trust our tortoise not to eat, so this is much safer. It holds a little humidity, just enough to make the enclosure not too dusty in between spraying.