I have a pair of klauberi.
People used to ball pythons and boas may find the husbandry curve a little daunting. They are fossorial - meaning that they like to spend their time underground - or in the case of the captive snake, buried under the substrate.
They feed mainly on invertebrates, and this species can be safely kept in pairs without incident.
Temps are the same as with most western colubrids - mid to low 70s on the cools end, and ambient in the mid 70s and a hot area in the mid 80s.
Red banding depends on locality and species. Some chionactis have no red. They are nominally rear fanged and mildly venomous - think hognose.