Hi guys this is my first post on this forum and I have a couple questions.First I recently ran across a youtube video of a black and white tegu and was amazed by how tame and intelligent.I have had reptile experience before with bearded dragons,ball pythons,chinesse water dragons and yeah.Anyways I wanted to know whats a good size cage for a tegu I wanted to build a 8x4x4 and need to know whats a good material to use to build this cage and what I will need I hear people saying you need sealents and stuff like that because of the humidity why is this needed and also what is pvc?oh and will I need to coat the material used to build the cage with something that will be able to resist humidity