Hey Spring&Iso, My snake was born August 2017...I started him in bioactive during Thanksgiving Nov 2017...

As far as burrowing goes I had set up 3 different cork flats at an angle for him to use as hides/caverns...he doesn't burrow in the sense of straight line tubes under the soil like a gopher would do...Its more like his coiling activity in the hides slowly creates a deeper depression in the soil over time for him to feel safe and secure in... I spray the inside of one of the hides periodically so he can use it as a humid hide, the other ones are pretty dry inside...