That's cool! I had the same thing happen in my tank a couple weeks ago. I have 2 cleaners, a mated pair of Maroons, and 2 Bangali cardinalfish. I'm preplexed as to which pair of anamials it was that mated, but I was sitting in front of the tank when they were released as you we're. What caught my attention was one of the Cardinals darting around very fast. Then the rest of the fish followed. It was quite the feeding frenzy! Nothing like adding formula one or Cyclopseeze. I mean they we're more agressive then I had ever seen them. I t happend so fast that they we're all gone in under 2 min I think. I am pretty sure it was the shrimp, but I never seen eggs under either of them, but then I wasen't looking for eggs on them either. What sucked about it was the halides had just turned off and just the actenics we're on so I coulden't see the fry real good. But boy did they clean it up fast! Must have been some good eatink
so for about 5 seconds i was the proud ownder of hundreds of baby shrimpies... just wanted to share.... 
