I have been using shredded aspen for my Dumeril's Boa. I just buy the high quality finely shredded Zoo-Med stuff since this is the only cage I use it in so buying in bulk makes no sense for me. I've also tried cypress mulch and really don't like that either. I've never tried sani-chips at all, so I would like to hear from anyone who uses the stuff (especially if you use it in your Dumeril's Boas cage)
I use paper based substrates in all of my other cages but since Dumeril's like to burrow paper doesn't work well (at least with mine)
Thanks.