Normally I get Aspen shavings as substrate (the ZooMed type that milksnakes love)... and I use that. Either that or (when I can get it) ... coconut husk.
I bought 4 packets of the cheap aspen only to see that its more aspen chips than shavings. The kinda stuff you normally see mice living in. On the label on the front it says "low dust animal bedding". Now I know the chips have a little dust so I am very worried about that. Is this bedding bad for a ball python? I have made sure there is very little dust, but I notice my ball python is sitting with half his body on his hide rather than his full body on the substrate. Now I just moved him into that habitat so Im not sure if this is normal behaviour or if he doesnt like the substrate. Normally my ball pythons just sit on top of the heating bad and chills. This one seems to prefer sitting on top of its main hide than by the heating pad.
Now I dont know if its cause he doesnt like the substrate or if he really likes the view.