Welcome to BP.net!!!

A sand base will thwart any attempt you make at providing belly heat with a UTH. You need to re-think that plan right off the bat. Secondly, please do not use pine anything as a substrate. Any pine substrate can hold pine sap that is not good for your BP's scales, and a higher levels can be toxic.

I agree with the rest that a 100 gal tank is far too large for a baby BP. If you are set on using a tank for your snake, please invest in a 20 gal long and read the following:

http://ball-pythons.net/forums/showt...p-w-pics-*DUW*


Good luck!