My extra tank idea

[Tom Highum]

Ok I just had and idea to take a 5.5 tank fill it with about 3 inches of organic potting soil. Then add red wrigglers, tropical springtails and tropical woodlice. Then putt in some extra plants (parts and whole plants that I am not using) and my WC tiny skink Lampropholis delicata. Could the entire setup live with just me throwing in some peices of feces from my other frog and lizard tanks? My idea is the bugs decompose the poop the plants take the nutrients and the skink eats the bugs. I think this would just be cool and useful. I could use some of the soil from this tank (full of bugs) to start other tanks.
Any ideas? Any additions? Also where again can I get tropical woodlice?