I've been looking into this too recently as I am starting to plan my SPS/Azoox nano tank for next years contest
. I've made my own bioreactors before for growing algae, and it seems that going zooplankton is even easier to do. I'm planning on having a phyto reactor connected to a zooplankton reactor. I want it to be as easy as turning a few valves.
The guy to talk to is monocus. He goes his own cultures.