Years ago I kept boas & pythons on aspen. For the past 12 years I kept them on newspaper with the last three years on indented craft paper. All of mine are very tame and I notice no difference in temperament or aggression whether kept on loose substrate or paper. I do feel that paper makes for a much more efficient, clean environment for the snakes. Bill ----- ...three years ago it was just another snake cult... The Retic is King. Anacondas-the other Dark Side. Afrocks-the dark side of the Dark Side.