my favorite set up EVER,was a 30 breeder,with reptibark,2 rock water dishes,2 hides with dark mulch hot glued to them,and some cool drift wood pieces in it,but paying 20 bucks a month on substrate kinda sucked,and i couldnt find the cage substrate cleaner local to was it with as recomended from the company,so i switched to news paper,then to sani chips,and now some on mulch some on aspen shavings,cleanliness,couldnt beat news paper,when i had mulch in my burm tank,hed shread his skin when he shed,and that was a pain to clean out,so hes on aspen now,but i dislike aspen,as it can stick on some of the snakes and can be difficult to vaccum off the carpet if its not done right away,,,long story short,,,what works for you and your animals?