Hi guys! I'm going to get a bigger tub for my snakes, so I can have some space to place something for them to climb, especially my baby BCC. I saw some people have something like white perch/rod which is on some type of mount in the tubs for their green tree pythons, May I know what is that and where to get these? How to make them fit the length of the tubs? Or any other recommendations? Thank you so much for your help!