You need to remove the tape from inside the cage. Tape can really do harm to your snake and I promise you it will check out the cage and come into contract with it.

I use these to run wires. http://www.lowes.com/pd_61624-170-C1...-confirm-store

I like them because I can still remove the wires without having to take it off and leaving residue everywhere. Now it does still have an adhesive but it is nothing like duct our foil tape. It also will not wrap around the snake. I Mount them high on the wall and even my big blood has not been able to knock it loose. It is a much better alternative than tape. They are also easy to cut to the size you need.