What must be confirmed about climbing structures placed in a tree frog enclosure?
Answer
They must be free from chemicals or pesticides
All materials placed inside the enclosure, including structural elements like branches and cork bark, must be verified as safe and free from chemicals or pesticides that could harm the frog through its sensitive skin.

#Videos
How to Care for Gray Treefrogs! - YouTube
How To Build a Tree Frog House - YouTube
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