I am looking for propping options for a vivarium build I am starting, and a recent wind storm has made some nice oak branches available. I tried looking for a thread or comment about using oak as a prop, but was unable to find anything on the boards. I have heard of some people using oak leaves as leaf litter (after boiling/disinfecting), but never heard anyone using the branches as roots or to mount bromeliads. My only experience with oak relating to animals is that it can be toxic to some herbivores. Since the frogs will be climbing on it, will it be okay to incorporate into a vivarium?