The thread on live rock critters has got me wondering about a small seed-like organizm that I've been finding in my HOB prefilter (over downspout pipe)... I noticed little things that look almost like sesame seeds in my prefilter and checked em out with a magnifying glass... definitely some kind of creature or an egg waiting to hatch into something.. Anybody else see these in your prefilter? I've found about a dozen in mine.