Captive Bred Reptile Forums UK - This is an excellent thread about creating an environment with bio-active substrate, with lots of pictures and details about how this enclosure was created, along with a cameo...
DIY Tub Setup
Jan 5, 2012
by Editor in Chief
Ball-Pythons.net - This is an excellent article about how to set up a tub enclosure with proper heat, completely documented with pictures.@ Ball-Pythons.net