livebrineshrimp.com has feeder shrimp, 'live marine janitors', and the prices, once you include shipping are close (I think livebrineshrimp ends up being a little cheaper). Livebrineshrimp uses much more packaging in terms of styrofoam than the aquaculturestore does, and aquaculturestore accepts pay pal while livebrineshrimp does not. One last thing - aquaculturestore ships via usps, while livebrineshirmp sends DHL.
Whew!