So as I've stated before Im in the process of setting up a naturalistic terrarium for my ball python. My goal is for it to be fully sustainable, or as much as is realistically possible. Over the course of my research I have found out that I need a "cleaning crew" consisting of Isopoda and springtails to clean up and break down feces, mold or any other unwanted biological material.

I have two questions. First, where can I purchase a cleaning crew? Second, what specific types and how many do I need for a 75 gallon setup?