I did use kraft paper, but I am now using shredded aspen. The snakes seem to like it better than the paper. However, I think Paper is better for those who use belly heat.
My Daughters name all the animals...
0.1 BP - Normal (Seviper)
0.1 RTB - Normal BCI (Ekans)
0.0.1 GTP - Merauke (Carnivine)
0.1 RTB - Suriname BCC (Sand Ma'am...a.k.a. Sandy)
0.1 RTB - Anery BCI (Onix)
My samller boa is on repti-bark, but will soon be switched to aspen...and my big girl is on aspen with tile underneath...and my ball python is also on aspen.