I've fed my fish frozen Brine Shrimp and Blood Worms before, and I've just bought this feeder system off ebay that looks pretty good. It says it can be used with SW and FW (which is good because I'm all FW!), and I've also got some eggs on the way too for hatching. Anyway, question is has anyone else had any experience with this sort of thing? Any disasters? Happy Endings? That sort of thing?