Hello i was just thinking of why people don't use sand and dirt and coco husk or substrate in general because of the belief that their animal may eat it and not be able to pass it but these animals are from environments made of sand and dirt so they would be extinct surely if they got impaction all the time and although it's very unlikely it can sometimes very rarely happen but that's just down to feeding as most the time animals keep their mouths shut please respond with your opinions and give me your point of view on the problem. personally I've kept my leopard gecko Ember on sand since she was 3 months old and although she has ate a little bit of it at times i provide her with calcium UV multi vit and as varied of a diet as i can give her and she manages to pass it fine