Originally Posted by carnzayne
So do you worry about smaller species such as thumbnails having eggs and then transporting them to who knows where.
What about if there is no water feature for them to deposit tadpoles in?
There would need to be some sort of water feature for tadpole deposition. A simple small pond would probably suffice for many PDF's. In the case of thumbnails wouldn't they transport tads to bromeliads/film canisters that are in the vivarium? I'm not sure I understand what you're asking.