Hmm, established aquarium with tons of microfauna.
What I got from that is, start a tank, cycle it once you're happy with the scaping, then turn the lights on bright and cover the back wall with algae, and put in some guppies to run the tank on full blast till I get my shrimp.
This is exactly what my ghostshrimp/guppy tank has now, I think I can replicate it for another tank.
Thanks for the info.
I've gotta try and track down an RO/DI unit on the cheap at some point.