i was thinking about adding 4 or 5 pep shrimp, or maybe a couple of urchins to my fuge for production of eggs/gameates as a food source for my main tank which houses a variety of mostly soft corals, polyps, and several planktovorious fishes. i've searched this site, wetwebmedia, and reefs.org and found no info on using shrimp, or urchins for this purpose. any suggestions/experiences with this?