I came across this substrate while I was out and about earlier today. Its advertised as being for small mammals, and is a mixture of dried and heat treated bark and birch leaves, and feels very light and soft inside the bag. Its a very attractive looking substrate however I'm unsure if birch is toxic to snakes? I can't find anything online to say it is, so has anyone ever used this and if not do you think it would be suitable? I haven't bought it, photos were taken in the shop.